Being new to reflex and acquired the Canon which it refers, I expected this book to give me at once the basics of using a completely manual mode for those reflex and make the most of my device. In the end there is neither one nor the other. It is a succession of banalities which refers to the manual pages provided by Canon! straw! So if you have the Canon manual you do not learn more with this book. I'm really super disappointed and angry that we could misuse the customer like that. So I did more research and ordered the book of Ph. Chaudré, "optimize the maximum of the Canon 650D" (almost the same as the 600D) that it is an excellent book. Go therefore certainly look on this side!