diff --git a/README.md b/README.md
index 0d64c2e..773f120 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # A practical approach to Java Memory Model 
 # Presentation
+  https://www.youtube.com/watch?v=pS5dPQwgnYo
   https://speakerdeck.com/amczarny/a-practical-approach-to-java-memory-model
 # Build
 ```