New Star Trek auction catalogue -- free!
Propworx has an online auction of Star Trek uniforms, props, etc, today. For their first big auction they produced a very nice hardcover auction catalogue and gave a way a pdf version. This time they're doing the pdf version only. It's not quite as nice as the first, but it's probably still worth getting if you're interested in this kind of thing.
As far as I know, from a book collecting perspective, the first Propworx catalogue and the two-volume Christie's catalogue are the only Star Trek auction catalogues in print. They may not be easy to find, but anyone interested in behind the scenes stuff, props, costumes, and all that sort of thing really should have them.
A couple of sample images, a matte painting I wish I could afford and a model detail: