diff --git a/15_Day/15_day_classes.md b/15_Day_Classes/15_day_classes.md
similarity index 98%
rename from 15_Day/15_day_classes.md
rename to 15_Day_Classes/15_day_classes.md
index 400d03d0..7b463289 100644
--- a/15_Day/15_day_classes.md
+++ b/15_Day_Classes/15_day_classes.md
@@ -1,5 +1,5 @@
 <div align="center">
-  <h1> 30 Days Of JavaScript</h1>
+  <h1> 30 Days Of JavaScript: Classes</h1>
   <a class="header-badge" target="_blank" href="https://www.linkedin.com/in/asabeneh/">
   <img src="https://img.shields.io/badge/style--5eba00.svg?label=LinkedIn&logo=linkedin&style=social">
   </a>
@@ -14,7 +14,7 @@
 
 </div>
 
-[<< Day 14](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/14_Day/14_day_error_handling.md) | [Day 16>>](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/16_Day/16_day_json.md)
+[<< Day 14](../14_Day_Error_handling/14_day_error_handling.md) | [Day 16>>](../16_Day_JSON/16_day_json.md)
 
 ![Thirty Days Of JavaScript](../images/banners/day_1_15.png)
 
@@ -712,4 +712,4 @@ Frequency Distribution: [(20.0, 26), (16.0, 27), (12.0, 32), (8.0, 37), (8.0, 34
 
 🎉 CONGRATULATIONS ! 🎉
 
-[<< Day 14](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/14_Day/14_day_error_handling.md) | [Day 16>>](https://github.com/Asabeneh/30DaysOfJavaScript/blob/master/16_Day/16_day_json.md)
+[<< Day 14](../14_Day_Error_handling/14_day_error_handling.md) | [Day 16>>](../16_Day_JSON/16_day_json.md)
diff --git a/15_Day/15_day_starter/data/countries_data.js b/15_Day_Classes/15_day_starter/data/countries_data.js
similarity index 100%
rename from 15_Day/15_day_starter/data/countries_data.js
rename to 15_Day_Classes/15_day_starter/data/countries_data.js
diff --git a/15_Day/15_day_starter/index.html b/15_Day_Classes/15_day_starter/index.html
similarity index 100%
rename from 15_Day/15_day_starter/index.html
rename to 15_Day_Classes/15_day_starter/index.html
diff --git a/15_Day/15_day_starter/scripts/main.js b/15_Day_Classes/15_day_starter/scripts/main.js
similarity index 100%
rename from 15_Day/15_day_starter/scripts/main.js
rename to 15_Day_Classes/15_day_starter/scripts/main.js