diff --git a/README.md b/README.md
index 9f12864..4046806 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ __GraphNavigator__: online demo https://bluejoe2008.github.io/InteractiveGraph/d
 
 __GraphExplorer__: online demo 
 https://bluejoe2008.github.io/InteractiveGraph/dist/examples/example2.html
-<img alt="GraphExplorer" src="docs/exp.png" width="700">
+<img alt="GraphExplorer" src="docs/exp.gif" width="700">
 
 __RelFinder__: online demo https://bluejoe2008.github.io/InteractiveGraph/dist/examples/example3.html
 <img alt="RelFinder" src="docs/rel.gif" width="700">
diff --git a/docs/exp.gif b/docs/exp.gif
new file mode 100644
index 0000000..1dbf2e3
Binary files /dev/null and b/docs/exp.gif differ
diff --git a/docs/exp.mp4 b/docs/exp.mp4
new file mode 100644
index 0000000..1f56d5f
Binary files /dev/null and b/docs/exp.mp4 differ