I second the recommendation of "Fifty-Nine in '84: Old Hoss Radbourn, Barehanded Baseball, and the Greatest Season a Pitcher Ever Had." An interesting, easy-to-read book that includes some nice photographs, baseball cards, and scorecard covers.
I also recommend anything by Peter Morris, who is the author of five great books. You can see what he has written by following this link:
http://www.amazon.com/Peter-Morris/e..._athr_dp_pel_1
Hope this helps,
Charles