You can readily find books of older works of fiction that are no longer subject to copyright. Our Virtual Reading Room contains links to literature, classical and recreational reading on the Web. For nonfiction material, Electronic Books or Ebooks are emerging for some areas of studies but what is currently available is limited. See The Virtual Reading Room - Scholarly Works for more information and links to Ebooks. To learn what books might be helpful for your research, it is best to use a library's online catalog or a book store catalog to identify books that may exist on your topic.
Many library catalogs are available on the web.
Use library catalogs to identify books that have been written on a topic. The catalogs show what material the individual library has purchased or owns. For large libraries that acquire a lot of material, searching the catalog is an excellent way to find out what recent, older, and classical books exists on a topic. Com or Barnes and Noble are two large book store catalogs that can be used to identify books on any topic. The books will tend to be recent.