A very good and accessibly-written anthropology on the day-to-day life as well as the cultural politics of street booksellers is Mitchell Duneier's Sidewalk (1999). http://www.amazon.com/exec/obidos/ASIN/0374527253/qid=1117027244/sr=2- 1/ref=pd_bbs_b_2_1/002-9375827-9283214 http://www.salon.com/books/review/1999/12/16/duneier/