This is a nice find for book lovers!
Book Bay is an excellent used book store run by Friends of the San Francisco Public Library. It is bigger, more open, and has a better selection than most used shops. Profits go to the SF public library which we book lovers also appreciate.
Their Readers Cafe Coffee Shop, which is adjacent and a fairly recent addition, is pleasant too. It features Blue Bottle coffee drinks, free Wi-Fi, and a relaxed but clean atmosphere.
In general you will find most of the nearby galleries, exhibitions, and shops at Fort Mason to be both funky and interesting. Along with the book store they all make for a fun place to poke around on a rainy afternoon (like we did for a third time this past rainy Sunday)
Location: South end of Bldg C at Ft Mason Center. Marina Blvd & Laguna St, San Francisco, CA.