My first disappointment for an online purchase. Under an appearance of simplicity, this book is actually not very easy to use. The workflow is absolutely not clear, then it is essential to manage large suites pictures. The explanations are not clear, they seem drawn by a computer rather than by a user. The screen views are too small to decipher. I gave up on page 20 to finally print the online manual of the Adobe site, which is better written and ... free. To those who seek a well-written manual by a user, I recommend the book by Scott Kelby. It is twice as expensive, but it is much more useful.