I actually read version 2 of this book - so my review relates to that. DSDM Agile project management is a straightforward agile approach, fairly accessible for someone from a more traditional PM background. The book itself is reasonable - an easy read, reasonably comprehensive, and not a bad teaching aid, which is how most people will use it. It is quite expensive given the depth of the contents, but essential if you want to be qualified/accredited in DSDM agile. If you are looking for an intro guide to Agile though, I'd try something else.