I have written three books about Bryce. Each one grew half again as thick as the previous one.
The first one, The KPT Bryce Book (1995, Addison-Wesley) covers Bryce 1 for MacOS. I’m very proud of it; it won a Computer Press Award.
The second one, Real World Bryce 2 (1997, Peachpit Press) covers Bryce 2 for Mac and Windows (software built from different code bases, so Bryce 2 for Mac is different than Bryce 2 for Windows.)
The third (and final?) one, Real World Bryce 4 (2000, Peachpit Press, co-authored with Victor Gavenda), covers Bryce 4. Animation, oh my! Covered in painstaking detail.
Curious whether there’ll be a book for Bryce 5? No. The software didn’t changed enough to justify a new book version. (The tradeoff: Do I want to be creating a bizillion screenshots of that new blue interface and playing catch up? Do you really want to spend fifty bucks for a big thick book that’s mostly the same as the last one you paid fifty bucks for? RWB4 had hundreds of pages of brand new pages about new Bryce features