The 600D is my first SLR. To equip myself before entering this new world, I bought the unit and simultaneously the manual "for Dummies". The latter is actually clear and well done. After reading it and put into practice I attacked to the user guide provided by Canon with the camera, thinking only to find some technical additions. And finally no! The Canon guide is as complete and that the teaching manual "for Dummies". With progressive chapters and illustrated examples which are designed for both the beginner. To summarize, the manual for dummies is fine, but no better than the 600D's guide provided by Canon.