Welcome to Bells Books Bells has been a part of downtown Palo Alto, California, now central to Silicon Valley, for over 65 years. We stock over 150, 000 quality used and out-of-print hardcover volumes, as well as many fine antiquarian volumes. In addition we have a hand-picked selection of new books. We offer over 500 subject categories which include the following specialties: History, Horticulture, Literature, Childrens Books and the Arts.