I personally don't like this approach where it simply goes through and tells you this button does this, this picture means this.. blah boring to read but if you want the book just as a reference if you often forget what something does, and dont want to do trial and error (best way to learn) then get the book.. I will proubaly never buy another in a nut shell book, unless its for a programming language because then you often need to look up commands.. Everything you need to learn about photoshop is on the web just do some searching.