Evan Hall
Google
Great place to find interesting reads. Trends slightly towards nonfiction, and has fantastic sections on architecture and urban planning, history, science, and economics. It really is the best place to find books that make you think!
Be warned: this place stocks mostly new, recently-published books, and so this definitely isn't the cheapest place to look. However, the shop brings a unique, cozy character to the experience of finding a new books, and it's easy to tell how closely intertwined the J. Fox Bookshop is with the surrounding community. Bottom line: great character, great selection.