A Must Have for Flex, AIR and Flash developers – ActionScript 3 Reference Guide (PDF)
A great new reference guide for ActionScript 3 is now available for immediate download from the Adobe Developer Connection. I put this to use within 10 minutes of downloading it.
Snippet from the guide:
You can download yours from http://www.adobe.com/devnet/actionscript/articles/atp_ria_guide.html