diff --git a/manual.scrbl b/manual.scrbl
index d7fb3c7..5f8dbca 100644
--- a/manual.scrbl
+++ b/manual.scrbl
@@ -18,6 +18,8 @@ Furthermore, the graph library defines a number of cool and elegant
 macros, which I haven't figured out how to get working with Typed
 Racket yet.
 
+@bold{TODO:} List the exported functions together with their types.
+
 @section{Bug reporting}
 
 If you find a bug, first try running your code directly with the graph library,