Center for Book Arts - The Art of the Book
The Centre is dedicated to preserving the traditional crafts of book-making, as well as exploring and encouraging contemporary interpretations of the book as an art object. Centre for Book Arts provides listing of publications including exhibition catalogues, artists' books, poetry chapbooks and more.

V&A Inspiring Design
Produces highly illustrated books written by experts. Covers a wide range of subjects from fashion and photography to sculpture and Asian art. A recourse for collectors, practitioners, teachers and students. Publish lively and attractive books for those with a general interest in art and design.

Cornerhouse Publications
Provides rich and varied range of visual arts and photography titles from some of the most exciting and innovative publishers.

Cornell University Press.
Cornell University Press offers 150 new titles a year in many disciplines, including anthropology, classics, cultural studies, history, literary criticism and theory, medieval studies, philosophy, politics and international relations, psychology and psychiatry, and women's studies.

The World Art Group
Archaeology, architecture & art books from Bulgaria, Cyprus, Czech Republic, Egypt, Finland, Greece, Iran & Turkey.

Cambridge University Press

Excellent books of all kinds, education, art and studies.
Very good source for hard to find books!
http://www.alibris.com
http://www.bookfinder.com
http://www.allbookstores.com/search_advanced