A very impressive keypad! Clear explanations, one is taken by the hand for learning. Not wanting to do too much at once, because the book is dense. The tips keep coming, and it takes time to assimilate the routines, doing exercises; otherwise drowning is possible. The ideal would be to dedicate a limited time every day for study. After a few months of such a regime, a reader should be well managed with the software. This book can serve as a reference for some years and would lose his interest only with Photoshop significant developments. In any case, it's "The Book" on PS to have.