I just recieved the A-Z of Analogue Synthesizers books and they are amazing. There is tons of info on Moogs and all the classics as well as some truly weird one-offs. Forrest even includes a little pricing and collectability graph. These are hard to find, but I got mine on E-bay–signed.
I highly reccomend these if you can find and or afford them. I totally geeked out the minute I got them.
I own the first revision of these books. Indeed, they are the very best books I own in my fair collection of synth books. Worth every penny I paid (and maybe a few more). The b&w images are poor. But the text is the best who is who on analogue synth I found. The Keyfax book or the Mathias Becker books are not that good in terms of details and errors. There are a very little errors in the A to Z.
I wonder what Peter would write about the Moog Music Voyager ..