diff --git a/docs/building_blocks.md b/docs/building_blocks.md
index 4d31295e..5e6ba0cb 100644
--- a/docs/building_blocks.md
+++ b/docs/building_blocks.md
@@ -1,3 +1,8 @@
+# Introduction
+
+Building Blocks called from with hpccm recipes.  The following Building Blocks are included in the hpccm package.
+
+
 # arm_allinea_studio
 ```python
 arm_allinea_studio(self, **kwargs)