$10 shipped. Unused.
I'm the author, and the book retails at $23. Paperback, novel size, 204 pages, well illustrated in black and white. Covers everything from Daguerreotypes to news service photos, cabinet cards to Polaroids. Works well as a beginner's identification guide too.
When the book was first published, I got a number of new/unused copies which have been sitting on my book shelf since then. As with most readers, I don't require multiple copes. You can't get the unused book at this price. Paypal accepted and preferred.