Potter came onto the scene at just the right time for me: I was in my 20s, the horror boom was in full swing, and he seemed to be popping up everywhere I looked! When this book of his art came out, I was all over it.
Looking at his stuff now, it looks a little clunky, but only because he was a bit of a pioneer in his techniques (although they're rooted in older methods of photo-manipulation). Usually, hackier versions of his style are only seen on the very lamest of rap albums, but Potter's unique sensibilities and knack for bizarre juxtapositions set him in the stratosphere above his earthbound photo-collaging brethren.
The book itself, even without being a fan of his stuff, is superb, as art books go. The running text is interesting, managing to give just enough biographical info, technical insight and tangential trivia to engage the reader without being dull. The captions themselves run from comments by the models, to notes from the artist or even just a mention of a reused image.
One thing that really makes this book a must-have, even for Potter completists (if such a thing exists) is the inclusion of unused images for another Ramsey Campbell collaboration. Barring the publication of that book after this (which may have happened, I have no idea), this is the only place to see them.
All around, this is a perfect art book, even if the art looks less than perfect nearly 20 years later.