90% of the content seem slightly different aufberei tet to be taken from the German documentation of fusion 4. The autodidact find some relief operation with "O beautiful" experience. I had details to the DHTML functions he hopes. Absolute None - Will not even he imagines. Therefore an unnecessary expense for people who own the fusion Manual. For beginners, try the Fusion 4 Trial version, the book is okay and useful, although the online help of fusion is very extensive. But you can not read on the toilet ...