Great book! It really helps me understand the workings of a program I've been using constantly for over 20 years now. It explains every tiny step in clear and understandable sentences. Very user-friendly, much more so than Pogue's book on Filemaker 7 which I stopped reading because it frightened me (in general, I like Pogue a lot!) My work with Filemaker greatly improved with every page I've read so far.