Trident is an independent bookstore and cafe in Boston, MA. It is on Newbury Street on the last block before Mass Ave. Trident has great metaphysics and sex sections, and many other non-mainstream type books (it also has a respectable mainstream fiction section, but you can find that anywhere). The food is also good, especially if you like bizarre vegetarian concoctions. Possibly its best attribute is that it's open late, to 12 or 1 (depending on the day), a rarity in that part of Boston. Also, the waitstaff is usually pretty attractive, assuming you go for queer chicks.