diff --git a/app/src/main/java/com/google/samples/apps/nowinandroid/navigation/NiaNavHost.kt b/app/src/main/java/com/google/samples/apps/nowinandroid/navigation/NiaNavHost.kt
index 10fafddd9..4c64998e9 100644
--- a/app/src/main/java/com/google/samples/apps/nowinandroid/navigation/NiaNavHost.kt
+++ b/app/src/main/java/com/google/samples/apps/nowinandroid/navigation/NiaNavHost.kt
@@ -48,8 +48,16 @@ fun NiaNavHost(
         startDestination = startDestination,
         modifier = modifier,
     ) {
-        forYouScreen()
-        bookmarksScreen()
+        forYouScreen(
+            navigateToTopic = { topicId ->
+                navController.navigateToTopic(topicId)
+            }
+        )
+        bookmarksScreen(
+            navigateToTopic = { topicId ->
+                navController.navigateToTopic(topicId)
+            }
+        )
         interestsGraph(
             navigateToTopic = { topicId ->
                 navController.navigateToTopic(topicId)
@@ -58,8 +66,18 @@ fun NiaNavHost(
                 navController.navigateToAuthor(authorId)
             },
             nestedGraphs = {
-                topicScreen(onBackClick)
-                authorScreen(onBackClick)
+                topicScreen(
+                    onBackClick = onBackClick,
+                    navigateToTopic = { topicId ->
+                        navController.navigateToTopic(topicId)
+                    }
+                )
+                authorScreen(
+                    onBackClick = onBackClick,
+                    navigateToTopic = { topicId ->
+                        navController.navigateToTopic(topicId)
+                    }
+                )
             }
         )
     }
diff --git a/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsFeed.kt b/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsFeed.kt
index 32308bd63..c220bfc3a 100644
--- a/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsFeed.kt
+++ b/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsFeed.kt
@@ -42,7 +42,10 @@ import com.google.samples.apps.nowinandroid.core.model.data.previewNewsResources
  */
 fun LazyGridScope.newsFeed(
     feedState: NewsFeedUiState,
-    onNewsResourcesCheckedChanged: (String, Boolean) -> Unit
+    onNewsResourcesCheckedChanged: (String, Boolean) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
 ) {
     when (feedState) {
         NewsFeedUiState.Loading -> Unit
@@ -63,7 +66,10 @@ fun LazyGridScope.newsFeed(
                             saveableNewsResource.newsResource.id,
                             !saveableNewsResource.isSaved
                         )
-                    }
+                    },
+                    onBrowseTopic = onBrowseTopic,
+                    onFollowTopic = onFollowTopic,
+                    onUnfollowTopic = onUnfollowTopic
                 )
             }
         }
@@ -97,7 +103,10 @@ fun NewsFeedLoadingPreview() {
         LazyVerticalGrid(columns = GridCells.Adaptive(300.dp)) {
             newsFeed(
                 feedState = NewsFeedUiState.Loading,
-                onNewsResourcesCheckedChanged = { _, _ -> }
+                onNewsResourcesCheckedChanged = { _, _ -> },
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
@@ -118,7 +127,10 @@ fun NewsFeedContentPreview() {
                         )
                     }
                 ),
-                onNewsResourcesCheckedChanged = { _, _ -> }
+                onNewsResourcesCheckedChanged = { _, _ -> },
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
diff --git a/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCard.kt b/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCard.kt
index 16e86c192..bc5e333a3 100644
--- a/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCard.kt
+++ b/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCard.kt
@@ -57,7 +57,6 @@ import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import coil.compose.AsyncImage
-import com.google.samples.apps.nowinandroid.core.designsystem.R as DesignsystemR
 import com.google.samples.apps.nowinandroid.core.designsystem.component.NiaToggleButton
 import com.google.samples.apps.nowinandroid.core.designsystem.component.NiaTopicTag
 import com.google.samples.apps.nowinandroid.core.designsystem.icon.NiaIcons
@@ -66,11 +65,12 @@ import com.google.samples.apps.nowinandroid.core.model.data.Author
 import com.google.samples.apps.nowinandroid.core.model.data.NewsResource
 import com.google.samples.apps.nowinandroid.core.model.data.Topic
 import com.google.samples.apps.nowinandroid.core.model.data.previewNewsResources
+import kotlinx.datetime.Instant
+import kotlinx.datetime.toJavaInstant
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.util.Locale
-import kotlinx.datetime.Instant
-import kotlinx.datetime.toJavaInstant
+import com.google.samples.apps.nowinandroid.core.designsystem.R as DesignsystemR
 
 /**
  * [NewsResource] card used on the following screens: For You, Saved
@@ -83,6 +83,9 @@ fun NewsResourceCardExpanded(
     isBookmarked: Boolean,
     onToggleBookmark: () -> Unit,
     onClick: () -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
     modifier: Modifier = Modifier
 ) {
     val clickActionLabel = stringResource(R.string.card_tap_action)
@@ -123,7 +126,12 @@ fun NewsResourceCardExpanded(
                     Spacer(modifier = Modifier.height(12.dp))
                     NewsResourceShortDescription(newsResource.content)
                     Spacer(modifier = Modifier.height(12.dp))
-                    NewsResourceTopics(newsResource.topics)
+                    NewsResourceTopics(
+                        topics = newsResource.topics,
+                        onBrowseClick = onBrowseTopic,
+                        onFollowClick = onFollowTopic,
+                        onUnfollowClick = onUnfollowTopic
+                    )
                 }
             }
         }
@@ -267,6 +275,9 @@ fun NewsResourceShortDescription(
 @Composable
 fun NewsResourceTopics(
     topics: List<Topic>,
+    onFollowClick: (String) -> Unit,
+    onUnfollowClick: (String) -> Unit,
+    onBrowseClick: (String) -> Unit,
     modifier: Modifier = Modifier
 ) {
     // Store the ID of the Topic which has its "following" menu expanded, if any.
@@ -284,9 +295,9 @@ fun NewsResourceTopics(
                 onDropMenuToggle = { show ->
                     expandedTopicId = if (show) topic.id else null
                 },
-                onFollowClick = { }, // ToDo
-                onUnfollowClick = { }, // ToDo
-                onBrowseClick = { }, // ToDo
+                onFollowClick = { onFollowClick(topic.id) },
+                onUnfollowClick = { onUnfollowClick(topic.id) },
+                onBrowseClick = { onBrowseClick(topic.id) },
                 text = { Text(text = topic.name.uppercase(Locale.getDefault())) }
             )
         }
@@ -322,7 +333,10 @@ fun ExpandedNewsResourcePreview() {
                 newsResource = previewNewsResources[0],
                 isBookmarked = true,
                 onToggleBookmark = {},
-                onClick = {}
+                onClick = {},
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
diff --git a/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCardList.kt b/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCardList.kt
index 25a7bd2dc..37096e2af 100644
--- a/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCardList.kt
+++ b/core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/NewsResourceCardList.kt
@@ -40,6 +40,9 @@ fun <T> LazyListScope.newsResourceCardItems(
     newsResourceMapper: (item: T) -> NewsResource,
     isBookmarkedMapper: (item: T) -> Boolean,
     onToggleBookmark: (item: T) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
     onItemClick: ((item: T) -> Unit)? = null,
     itemModifier: Modifier = Modifier,
 ) = items(
@@ -55,6 +58,9 @@ fun <T> LazyListScope.newsResourceCardItems(
             newsResource = newsResource,
             isBookmarked = isBookmarkedMapper(item),
             onToggleBookmark = { onToggleBookmark(item) },
+            onBrowseTopic = onBrowseTopic,
+            onFollowTopic = onFollowTopic,
+            onUnfollowTopic = onUnfollowTopic,
             onClick = {
                 when (onItemClick) {
                     null -> ContextCompat.startActivity(context, launchResourceIntent, null)
diff --git a/feature/author/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreenTest.kt b/feature/author/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreenTest.kt
index b955912f2..438ef7cf7 100644
--- a/feature/author/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreenTest.kt
+++ b/feature/author/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreenTest.kt
@@ -58,6 +58,9 @@ class AuthorScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
@@ -76,6 +79,9 @@ class AuthorScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
@@ -106,6 +112,9 @@ class AuthorScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
@@ -132,6 +141,9 @@ class AuthorScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
diff --git a/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreen.kt b/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreen.kt
index 114b4c438..2fc629a3c 100644
--- a/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreen.kt
+++ b/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorScreen.kt
@@ -67,6 +67,7 @@ import com.google.samples.apps.nowinandroid.core.ui.newsResourceCardItems
 @Composable
 internal fun AuthorRoute(
     onBackClick: () -> Unit,
+    navigateToTopic: (String) -> Unit,
     modifier: Modifier = Modifier,
     viewModel: AuthorViewModel = hiltViewModel(),
 ) {
@@ -80,6 +81,13 @@ internal fun AuthorRoute(
         onBackClick = onBackClick,
         onFollowClick = viewModel::followAuthorToggle,
         onBookmarkChanged = viewModel::bookmarkNews,
+        onBrowseTopic = navigateToTopic,
+        onFollowTopic = { topicId ->
+            viewModel.followTopic(topicId, true)
+        },
+        onUnfollowTopic = { topicId ->
+            viewModel.followTopic(topicId, false)
+        },
     )
 }
 
@@ -91,6 +99,9 @@ internal fun AuthorScreen(
     onBackClick: () -> Unit,
     onFollowClick: (Boolean) -> Unit,
     onBookmarkChanged: (String, Boolean) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     val scrollableState = rememberLazyListState()
@@ -127,6 +138,9 @@ internal fun AuthorScreen(
                     author = authorUiState.followableAuthor.author,
                     news = newsUiState,
                     onBookmarkChanged = onBookmarkChanged,
+                    onBrowseTopic = onBrowseTopic,
+                    onFollowTopic = onFollowTopic,
+                    onUnfollowTopic = onUnfollowTopic
                 )
             }
         }
@@ -139,13 +153,22 @@ internal fun AuthorScreen(
 private fun LazyListScope.authorBody(
     author: Author,
     news: NewsUiState,
-    onBookmarkChanged: (String, Boolean) -> Unit
+    onBookmarkChanged: (String, Boolean) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
 ) {
     item {
         AuthorHeader(author)
     }
 
-    authorCards(news, onBookmarkChanged)
+    authorCards(
+        news = news,
+        onBookmarkChanged = onBookmarkChanged,
+        onBrowseTopic = onBrowseTopic,
+        onFollowTopic = onFollowTopic,
+        onUnfollowTopic = onUnfollowTopic
+    )
 }
 
 @Composable
@@ -176,7 +199,10 @@ private fun AuthorHeader(author: Author) {
 
 private fun LazyListScope.authorCards(
     news: NewsUiState,
-    onBookmarkChanged: (String, Boolean) -> Unit
+    onBookmarkChanged: (String, Boolean) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
 ) {
     when (news) {
         is NewsUiState.Success -> {
@@ -185,6 +211,9 @@ private fun LazyListScope.authorCards(
                 newsResourceMapper = { it.newsResource },
                 isBookmarkedMapper = { it.isSaved },
                 onToggleBookmark = { onBookmarkChanged(it.newsResource.id, !it.isSaved) },
+                onBrowseTopic = onBrowseTopic,
+                onFollowTopic = onFollowTopic,
+                onUnfollowTopic = onUnfollowTopic,
                 itemModifier = Modifier.padding(24.dp)
             )
         }
@@ -252,6 +281,9 @@ fun AuthorScreenPopulated() {
                 onBackClick = {},
                 onFollowClick = {},
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
     }
@@ -268,6 +300,9 @@ fun AuthorScreenLoading() {
                 onBackClick = {},
                 onFollowClick = {},
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
     }
diff --git a/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorViewModel.kt b/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorViewModel.kt
index 2f63dbc11..1dba9aa3b 100644
--- a/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorViewModel.kt
+++ b/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/AuthorViewModel.kt
@@ -80,6 +80,12 @@ class AuthorViewModel @Inject constructor(
             userDataRepository.updateNewsResourceBookmark(newsResourceId, bookmarked)
         }
     }
+
+    fun followTopic(followedTopicId: String, followed: Boolean) {
+        viewModelScope.launch {
+            userDataRepository.toggleFollowedTopicId(followedTopicId, followed)
+        }
+    }
 }
 
 private fun authorUiStateStream(
diff --git a/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/navigation/AuthorNavigation.kt b/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/navigation/AuthorNavigation.kt
index 59b68ce91..d2b4b21b0 100644
--- a/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/navigation/AuthorNavigation.kt
+++ b/feature/author/src/main/java/com/google/samples/apps/nowinandroid/feature/author/navigation/AuthorNavigation.kt
@@ -41,7 +41,8 @@ fun NavController.navigateToAuthor(authorId: String) {
 }
 
 fun NavGraphBuilder.authorScreen(
-    onBackClick: () -> Unit
+    onBackClick: () -> Unit,
+    navigateToTopic: (String) -> Unit,
 ) {
     composable(
         route = "author_route/{$authorIdArg}",
@@ -49,6 +50,6 @@ fun NavGraphBuilder.authorScreen(
             navArgument(authorIdArg) { type = NavType.StringType }
         )
     ) {
-        AuthorRoute(onBackClick = onBackClick)
+        AuthorRoute(onBackClick = onBackClick, navigateToTopic = navigateToTopic)
     }
 }
diff --git a/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksScreen.kt b/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksScreen.kt
index 560378370..f97162f84 100644
--- a/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksScreen.kt
+++ b/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksScreen.kt
@@ -51,13 +51,15 @@ import com.google.samples.apps.nowinandroid.core.ui.newsFeed
 @Composable
 internal fun BookmarksRoute(
     modifier: Modifier = Modifier,
+    navigateToTopic: (String) -> Unit,
     viewModel: BookmarksViewModel = hiltViewModel()
 ) {
     val feedState by viewModel.feedUiState.collectAsStateWithLifecycle()
     BookmarksScreen(
         feedState = feedState,
         removeFromBookmarks = viewModel::removeFromSavedResources,
-        modifier = modifier
+        modifier = modifier,
+        onBrowseTopic = navigateToTopic,
     )
 }
 
@@ -65,6 +67,7 @@ internal fun BookmarksRoute(
 fun BookmarksScreen(
     feedState: NewsFeedUiState,
     removeFromBookmarks: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
     modifier: Modifier = Modifier
 ) {
     val scrollableState = rememberLazyGridState()
@@ -98,6 +101,7 @@ fun BookmarksScreen(
                     newsFeed(
                         feedState = feedState,
                         onNewsResourcesCheckedChanged = { id, _ -> removeFromBookmarks(id) },
+                        onBrowseTopic = onBrowseTopic,
                     )
                     item(span = { GridItemSpan(maxLineSpan) }) {
                         Spacer(Modifier.windowInsetsBottomHeight(WindowInsets.safeDrawing))
diff --git a/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt b/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt
index 1b9efc6aa..4782d4ec1 100644
--- a/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt
+++ b/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/BookmarksViewModel.kt
@@ -55,4 +55,10 @@ class BookmarksViewModel @Inject constructor(
             userDataRepository.updateNewsResourceBookmark(newsResourceId, false)
         }
     }
+
+    fun followTopic(followedTopicId: String, followed: Boolean) {
+        viewModelScope.launch {
+            userDataRepository.toggleFollowedTopicId(followedTopicId, followed)
+        }
+    }
 }
diff --git a/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/navigation/BookmarksNavigation.kt b/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/navigation/BookmarksNavigation.kt
index 188c948e4..87a9e5aab 100644
--- a/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/navigation/BookmarksNavigation.kt
+++ b/feature/bookmarks/src/main/java/com/google/samples/apps/nowinandroid/feature/bookmarks/navigation/BookmarksNavigation.kt
@@ -28,8 +28,8 @@ fun NavController.navigateToBookmarks(navOptions: NavOptions? = null) {
     this.navigate(bookmarksRoute, navOptions)
 }
 
-fun NavGraphBuilder.bookmarksScreen() {
+fun NavGraphBuilder.bookmarksScreen(navigateToTopic: (String) -> Unit) {
     composable(route = bookmarksRoute) {
-        BookmarksRoute()
+        BookmarksRoute(navigateToTopic = navigateToTopic)
     }
 }
diff --git a/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouScreen.kt b/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouScreen.kt
index 4651e1204..c1a9a9c2b 100644
--- a/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouScreen.kt
+++ b/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouScreen.kt
@@ -92,6 +92,7 @@ import com.google.samples.apps.nowinandroid.core.ui.newsFeed
 @Composable
 internal fun ForYouRoute(
     modifier: Modifier = Modifier,
+    navigateToTopic: (String) -> Unit,
     viewModel: ForYouViewModel = hiltViewModel()
 ) {
     val onboardingUiState by viewModel.onboardingUiState.collectAsStateWithLifecycle()
@@ -106,6 +107,13 @@ internal fun ForYouRoute(
         onAuthorCheckedChanged = viewModel::updateAuthorSelection,
         saveFollowedTopics = viewModel::dismissOnboarding,
         onNewsResourcesCheckedChanged = viewModel::updateNewsResourceSaved,
+        onBrowseTopic = navigateToTopic,
+        onFollowTopic = { topicId ->
+            viewModel.followTopic(topicId, true)
+        },
+        onUnfollowTopic = { topicId ->
+            viewModel.followTopic(topicId, false)
+        },
         modifier = modifier
     )
 }
@@ -119,6 +127,9 @@ internal fun ForYouScreen(
     onAuthorCheckedChanged: (String, Boolean) -> Unit,
     saveFollowedTopics: () -> Unit,
     onNewsResourcesCheckedChanged: (String, Boolean) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
+    onBrowseTopic: (String) -> Unit,
     modifier: Modifier = Modifier,
 ) {
 
@@ -178,6 +189,9 @@ internal fun ForYouScreen(
         newsFeed(
             feedState = feedState,
             onNewsResourcesCheckedChanged = onNewsResourcesCheckedChanged,
+            onBrowseTopic = onBrowseTopic,
+            onFollowTopic = onFollowTopic,
+            onUnfollowTopic = onUnfollowTopic
         )
 
         item(span = { GridItemSpan(maxLineSpan) }) {
@@ -405,7 +419,10 @@ fun ForYouScreenPopulatedFeed() {
                 onTopicCheckedChanged = { _, _ -> },
                 onAuthorCheckedChanged = { _, _ -> },
                 saveFollowedTopics = {},
-                onNewsResourcesCheckedChanged = { _, _ -> }
+                onNewsResourcesCheckedChanged = { _, _ -> },
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
@@ -427,7 +444,10 @@ fun ForYouScreenOfflinePopulatedFeed() {
                 onTopicCheckedChanged = { _, _ -> },
                 onAuthorCheckedChanged = { _, _ -> },
                 saveFollowedTopics = {},
-                onNewsResourcesCheckedChanged = { _, _ -> }
+                onNewsResourcesCheckedChanged = { _, _ -> },
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
@@ -452,7 +472,10 @@ fun ForYouScreenTopicSelection() {
                 onTopicCheckedChanged = { _, _ -> },
                 onAuthorCheckedChanged = { _, _ -> },
                 saveFollowedTopics = {},
-                onNewsResourcesCheckedChanged = { _, _ -> }
+                onNewsResourcesCheckedChanged = { _, _ -> },
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
@@ -470,7 +493,10 @@ fun ForYouScreenLoading() {
                 onTopicCheckedChanged = { _, _ -> },
                 onAuthorCheckedChanged = { _, _ -> },
                 saveFollowedTopics = {},
-                onNewsResourcesCheckedChanged = { _, _ -> }
+                onNewsResourcesCheckedChanged = { _, _ -> },
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
@@ -492,7 +518,10 @@ fun ForYouScreenPopulatedAndLoading() {
                 onTopicCheckedChanged = { _, _ -> },
                 onAuthorCheckedChanged = { _, _ -> },
                 saveFollowedTopics = {},
-                onNewsResourcesCheckedChanged = { _, _ -> }
+                onNewsResourcesCheckedChanged = { _, _ -> },
+                onBrowseTopic = {},
+                onFollowTopic = {},
+                onUnfollowTopic = {}
             )
         }
     }
diff --git a/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt b/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt
index 599bfd868..3fd1c25eb 100644
--- a/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt
+++ b/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModel.kt
@@ -129,6 +129,12 @@ class ForYouViewModel @Inject constructor(
             userDataRepository.setShouldHideOnboarding(true)
         }
     }
+
+    fun followTopic(followedTopicId: String, followed: Boolean) {
+        viewModelScope.launch {
+            userDataRepository.toggleFollowedTopicId(followedTopicId, followed)
+        }
+    }
 }
 
 private fun Flow<List<SaveableNewsResource>>.mapToFeedState(): Flow<NewsFeedUiState> =
diff --git a/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/navigation/ForYouNavigation.kt b/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/navigation/ForYouNavigation.kt
index f57deab90..9c3daaee2 100644
--- a/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/navigation/ForYouNavigation.kt
+++ b/feature/foryou/src/main/java/com/google/samples/apps/nowinandroid/feature/foryou/navigation/ForYouNavigation.kt
@@ -28,8 +28,8 @@ fun NavController.navigateToForYou(navOptions: NavOptions? = null) {
     this.navigate(forYouNavigationRoute, navOptions)
 }
 
-fun NavGraphBuilder.forYouScreen() {
+fun NavGraphBuilder.forYouScreen(navigateToTopic: (String) -> Unit,) {
     composable(route = forYouNavigationRoute) {
-        ForYouRoute()
+        ForYouRoute(navigateToTopic = navigateToTopic)
     }
 }
diff --git a/feature/topic/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreenTest.kt b/feature/topic/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreenTest.kt
index 0f20a5e5e..b78cecf7e 100644
--- a/feature/topic/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreenTest.kt
+++ b/feature/topic/src/androidTest/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreenTest.kt
@@ -62,6 +62,9 @@ class TopicScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
@@ -80,6 +83,9 @@ class TopicScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
@@ -110,6 +116,9 @@ class TopicScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
@@ -136,6 +145,9 @@ class TopicScreenTest {
                 onBackClick = { },
                 onFollowClick = { },
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
 
diff --git a/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreen.kt b/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreen.kt
index 58c572ade..434aff9a8 100644
--- a/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreen.kt
+++ b/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicScreen.kt
@@ -66,6 +66,7 @@ import com.google.samples.apps.nowinandroid.feature.topic.TopicUiState.Loading
 @Composable
 internal fun TopicRoute(
     onBackClick: () -> Unit,
+    navigateToTopic: (String) -> Unit,
     modifier: Modifier = Modifier,
     viewModel: TopicViewModel = hiltViewModel(),
 ) {
@@ -79,6 +80,15 @@ internal fun TopicRoute(
         onBackClick = onBackClick,
         onFollowClick = viewModel::followTopicToggle,
         onBookmarkChanged = viewModel::bookmarkNews,
+        onBrowseTopic = navigateToTopic,
+        onFollowTopic = { topicId ->
+            viewModel.followTopic(topicId, true)
+
+        },
+        onUnfollowTopic = { topicId ->
+            viewModel.followTopic(topicId, false)
+
+        },
     )
 }
 
@@ -90,6 +100,9 @@ internal fun TopicScreen(
     onBackClick: () -> Unit,
     onFollowClick: (Boolean) -> Unit,
     onBookmarkChanged: (String, Boolean) -> Unit,
+    onBrowseTopic: (String) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     val state = rememberLazyListState()
@@ -123,7 +136,10 @@ internal fun TopicScreen(
                     description = topicUiState.followableTopic.topic.longDescription,
                     news = newsUiState,
                     imageUrl = topicUiState.followableTopic.topic.imageUrl,
-                    onBookmarkChanged = onBookmarkChanged
+                    onBookmarkChanged = onBookmarkChanged,
+                    onBrowseTopic = onBrowseTopic,
+                    onFollowTopic = onFollowTopic,
+                    onUnfollowTopic = onUnfollowTopic,
                 )
             }
         }
@@ -138,14 +154,23 @@ private fun LazyListScope.TopicBody(
     description: String,
     news: NewsUiState,
     imageUrl: String,
-    onBookmarkChanged: (String, Boolean) -> Unit
+    onBookmarkChanged: (String, Boolean) -> Unit,
+    onBrowseTopic: (String) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
 ) {
     // TODO: Show icon if available
     item {
         TopicHeader(name, description, imageUrl)
     }
 
-    TopicCards(news, onBookmarkChanged)
+    TopicCards(
+        news = news,
+        onBookmarkChanged = onBookmarkChanged,
+        onBrowseTopic = onBrowseTopic,
+        onFollowTopic = onFollowTopic,
+        onUnfollowTopic = onUnfollowTopic,
+    )
 }
 
 @Composable
@@ -174,7 +199,10 @@ private fun TopicHeader(name: String, description: String, imageUrl: String) {
 
 private fun LazyListScope.TopicCards(
     news: NewsUiState,
-    onBookmarkChanged: (String, Boolean) -> Unit
+    onBookmarkChanged: (String, Boolean) -> Unit,
+    onBrowseTopic: (String) -> Unit,
+    onFollowTopic: (String) -> Unit,
+    onUnfollowTopic: (String) -> Unit,
 ) {
     when (news) {
         is NewsUiState.Success -> {
@@ -183,6 +211,9 @@ private fun LazyListScope.TopicCards(
                 newsResourceMapper = { it.newsResource },
                 isBookmarkedMapper = { it.isSaved },
                 onToggleBookmark = { onBookmarkChanged(it.newsResource.id, !it.isSaved) },
+                onBrowseTopic = onBrowseTopic,
+                onFollowTopic = onFollowTopic,
+                onUnfollowTopic = onUnfollowTopic,
                 itemModifier = Modifier.padding(24.dp)
             )
         }
@@ -201,8 +232,14 @@ private fun TopicBodyPreview() {
     NiaTheme {
         LazyColumn {
             TopicBody(
-                "Jetpack Compose", "Lorem ipsum maximum",
-                NewsUiState.Success(emptyList()), "", { _, _ -> }
+                name = "Jetpack Compose",
+                description = "Lorem ipsum maximum",
+                news = NewsUiState.Success(emptyList()),
+                imageUrl = "",
+                onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
     }
@@ -263,6 +300,9 @@ fun TopicScreenPopulated() {
                 onBackClick = {},
                 onFollowClick = {},
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
     }
@@ -279,6 +319,9 @@ fun TopicScreenLoading() {
                 onBackClick = {},
                 onFollowClick = {},
                 onBookmarkChanged = { _, _ -> },
+                onBrowseTopic = { },
+                onFollowTopic = { },
+                onUnfollowTopic = { },
             )
         }
     }
diff --git a/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicViewModel.kt b/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicViewModel.kt
index 160bcfb3b..79d8853e6 100644
--- a/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicViewModel.kt
+++ b/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/TopicViewModel.kt
@@ -79,6 +79,12 @@ class TopicViewModel @Inject constructor(
         }
     }
 
+    fun followTopic(followedTopicId: String, followed: Boolean) {
+        viewModelScope.launch {
+            userDataRepository.toggleFollowedTopicId(followedTopicId, followed)
+        }
+    }
+
     fun bookmarkNews(newsResourceId: String, bookmarked: Boolean) {
         viewModelScope.launch {
             userDataRepository.updateNewsResourceBookmark(newsResourceId, bookmarked)
diff --git a/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/navigation/TopicNavigation.kt b/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/navigation/TopicNavigation.kt
index 808143275..a0f4b2680 100644
--- a/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/navigation/TopicNavigation.kt
+++ b/feature/topic/src/main/java/com/google/samples/apps/nowinandroid/feature/topic/navigation/TopicNavigation.kt
@@ -41,7 +41,8 @@ fun NavController.navigateToTopic(topicId: String) {
 }
 
 fun NavGraphBuilder.topicScreen(
-    onBackClick: () -> Unit
+    onBackClick: () -> Unit,
+    navigateToTopic: (String) -> Unit,
 ) {
     composable(
         route = "topic_route/{$topicIdArg}",
@@ -49,6 +50,6 @@ fun NavGraphBuilder.topicScreen(
             navArgument(topicIdArg) { type = NavType.StringType }
         )
     ) {
-        TopicRoute(onBackClick = onBackClick)
+        TopicRoute(onBackClick = onBackClick, navigateToTopic = navigateToTopic)
     }
 }