Spoonbill and Sugartown Booksellers is in a pretty visible spot at 218 Bedford Avenue in the Williamsburg neighborhood. I still can’t help but point it out as one of my favorite places to check out books, especially arts related publications. Needless to say its an easy place to stop by with plenty of things to see in the immediate area.
Has no sign outside, so you might miss it, but if you do happen to find it, you will feel like you have walked into the 1920's. Its very chic, with Black and white marble decor, candle light and ambience to go with a great list of cocktails and whiskeys etc.
Fav art bookstore in the city (and the world?). Great place for inspiration and reference art, both new and vintage finds. Not very cheap but mostly quite worth it.