diff --git a/README.md b/README.md
index d5fe6c1..ebd8544 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,11 @@
 # book
 
 Daily usage annotations
+
+## Manuals
+
+- [gpg](gpg/README.md)
+- [install-hyperbola](install-hyperbola/README.md)
+- [libretools](libretools/README.md)
+- [scripts-greasemonkey](scripts-greasemonkey/README.md)
+- [ssh](ssh/README.md)