Got it. A fine book. I have been mucking about with Bryce 2, 3D, and 4 so I know a good deal of the material-but there is ALWAYS something new to learn. Or a different approach. And there ARE some things I was not familiar with. Recommended even for the experienced Brycean... And there are updates available on Susan's website as well which cover 4.1 and perhaps beyond. If you buy ANY Bryce book-get this one. Eric Walters