Casa Ramirez Folk Art Gallery is a great place to find Mexican Folk Art. They sponsor local artists works.
You will find a good selection of books about Mexican Culture, poetry and cookbooks, some of the books are in Spanish.
During the year they have special events to celebrate Mexican Culture such as the Day of the Dead Celebration & other activities. Also they sponsor poetry readings.
The best keep little secret place to visit and browse the collection or just to attend one of the many events they have.