diff --git a/SUMMARY.md b/SUMMARY.md
index 792df12..faf78c5 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -3,3 +3,4 @@
 * [SVG](/SVG.md)
 * [D3](/D3.md)
 * [BUILD](/BUILD.md)
+* [Lab](/Lab.md)