Well, now I've been looking at "FSA: The American Vision" for some time now (and I thank Dustym for bringing it to my attention, if that indeed is the book he was talking about) and I like it very much. While looking at the first third of the book, I went "Oh, it's these shots of Lange and Evans I've seen a thousand times", but then it branched out to discuss other photographers, less known to me and the general public. Two of my favorites, Jack Delano and Marion Post Wolcott, are well represented. There is one photograph by John Vachon that had me saying: "That attribution is wrong, that was by Walker Evans". It's a shot of two houses in Atlanta, with movie billboards in the foreground. But then I noticed that the movies advertised were different than in the Evans photograph....same scene caught the two photographers' attention.
One day I might go to Mt. Pleasant in Pennsylvania (I pass by it every six months as I drive to an elderly parent), and see how the WWI memorial looks different than in July 1937, when Evans photographed it. I don't suppose his tripod holes are available in the cement sidewalk....
Anyway, good book.