From the article What Bookstores Buy: St. Mark’s Bookshop in New York City:

St. Mark’s Bookshop has been located in Manhattan’s East Village for 35 years, first on St. Mark’s Place and now on 3rd Avenue. Co-owner Bob Contant, who purchases a variety of genres for the store, including photography and art books, says their customers reflect the diversity of New York City…

Consignment is also how the store handles self-published books. One recent example of a self-published photo book that was popular at St. Mark’s Bookshop is Time and Space on the Lower East Side by Brian Rose. The book compares photos Rose made in 1980 and 2010 at specific locations on Manhattan’s Lower East Side. The photographer himself brought it to the store to ask that they sell it. Contant notes that it’s a good example of the type of photo books that do well in the store: “It’s a combination of subject matter and the fact that it’s sort of a historical document.”

The photo and caption above is from the August print edition of PDN.