diff --git a/preparing/cheatsheet.md b/preparing/cheatsheet.md
index d08ce1ce..58565cbb 100644
--- a/preparing/cheatsheet.md
+++ b/preparing/cheatsheet.md
@@ -5,6 +5,11 @@ This is a straight-to-the-point distilled list of technical interview Do's and D
 
 For a detailed walkthrough of interview preparation, refer to the ["Preparing for a Coding Interview"](./) section.
 
+Legend: 
+✅ = DO
+❌ = DONT
+⚠️ = OPTIONAL
+
 ### 1. Before Interview
 
 || Things |