San Francisco has a great number of bookstores, and is (or at least appears to be) a pretty literate city.

Here are some:

• Modern Times Bookstore - Independent in the Mission
• City Lights Bookstore - Independent in North Beach
• Dog Eared Books - Used/New
• Borderlands Books - Horror and Fantasy (with large used selection)
• A Different Light - LGBTQ
• Bound Together Book Collective - Anarchist
• Books Inc.
• Aardvark Books
• Phoenix Books
• Red Hill Books
• Green Apple Books and Music - Used/New in the Richmond