Three, in the past two weeks:
1. Anders Petersen :: Cafe Lehmitz. Someone on this forum posted about Petersen a little while ago. I hadn't heard of him, but was impressed by a lot of his work. Finally bought a piece.
2. Victor Blackman :: My Way with a Camera. I came across his photograph of Françoise Hardy, and wanted to know more about him. I had been completely unfamiliar.
3. Richard Avedon+Truman Capote :: Observations. I already had a copy of this book, for ten years. One of the first 'major purchases' i made. I originally saw the book while i was in high school, scouring public libraries for all photography books. I swore that once i had made some money after college, i'd find a copy. So, last week, i was looking for a link so that i could show the contents to someone, and came across an ebay listing. Only $50! And it's in better condition than my old copy.