diff --git a/README.md b/README.md
index fed96643440b54c14b8c6c8c819e9349ec389c88..38fa1109aa1ec95c643026053d101a95ceb1e26d 100755
--- a/README.md
+++ b/README.md
@@ -81,7 +81,8 @@ This should be returned.
 
 # Usage Guide
 This section explains how to step by step use PyGMA.
-PyGMA works with user defined components/classes.
+PyGMA works with user defined components/classes(
+![Graphical explanation of the user interface](User_interface.pdf)).
 As such one needs to define the components one want to use.
 Then set them up insid the configuration file and tell PyGMA to use this configuration.