The photos make quite a good bibliography on the topic. Several
thousands of books
Go to
http://www.flickr.com/photos/10626258@N02/sets/72157624872511623/
Click any thumbnail
Actions > View all Sizes
Choose original size
Examples
http://www.flickr.com/photos/10626258@N02/5008591824/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5007982789/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5007981321/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5007972997/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5007971967/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5007970607/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5007968813/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008574692/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008641576/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008640414/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008031831/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008637200/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008635526/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008026731/in/set-72157624872511623/
http://www.flickr.com/photos/10626258@N02/5008024407/in/set-72157624872511623/
...