diff --git a/README.md b/README.md
index 8cfac1cb..0175175d 100644
--- a/README.md
+++ b/README.md
@@ -150,3 +150,8 @@ access token : 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
         }
     }
 ```
+### 참조 - 필수
+[git 사용법 강좌](https://www.youtube.com/watch?v=1I3hMwQU6GU&t=4031s)   
+[css flex / grid 강좌1](https://www.youtube.com/watch?v=7neASrWEFEM)   
+[css flex / grid 강좌2](https://www.youtube.com/watch?v=eprXmC_j9A4)   
+[css flex / grid 강좌3](https://www.youtube.com/watch?v=DxwBN7vdr-A&list=PLFeNz2ojQZjso4ZJVeeMWR72l8s9V8Ym9)