I bought the Visual Quickstart Guide for Premiere 5.1 (last version of Premiere I used). It was excellent and I imagine the 6.5 update will be just as good. Not sure where you are based but second-hand copies are available from Amazon.co.uk:

Amazon.co.uk: Premiere 6.5 for Windows and Macintosh (Visual QuickStart Guides): Antony Bolante: Books