There is a bookstore in Mirdamad Shopping center, close to Paitakht Tower; you will find all the new published books and CDs in Category of art, music, theatre and cinema in there. The interior design is so interesting as well.
A fantastic used book store in the Inner Richmond district of San Francisco. It's a bit out of the way for the typical tourist, but it's also well worth a visit, in part because of the excellent selection of books, and in part because Green Apple also happens to be on one of the city's most vibrant (and under-appreciated) retail districts.
A great book store in the Los Feliz area of LA. The have a massive selection of oddball design books, hot rod decoration books, pin up girl collections, and fashion books.