Here are some books that you may find useful during your studies. Search the Bennies catalogue Accessit for more, or browse the Non-fiction collection NFS.
http://www.flickr.com/photos/55839512@N08/9018429130
http://www.flickr.com/photos/55839512@N08/8550034051
http://www.flickr.com/photos/41284017@N08/14590005039