diff --git a/README.md b/README.md
index 4c8570b..85674e3 100644
--- a/README.md
+++ b/README.md
@@ -26,3 +26,12 @@ Building and running:
 ```
 make
 ```
+
+## Output explained
+```
+Keyboard: AT Translated Set 2 keyboard, Event: RELEASED, Key Code: 15 Pr: 24 Rel: 25 Rep: 14
+```
+Description is quite clear I assume in exception of last three. These are explained below:
+ - Pr = key presses this session (so not the total in database).
+ - Rel = key releases this session (so not the total in database). Release is one more than presses due startup of application that only registers the release of a key.
+ - Rep = when you hold you key down thus repeats. Also for only session, not database totals.