Books provide in-depth information on broad subject areas. Researchers use them when they need:
Note: Often a chapter or two, rather than the entire book, are all that you may need.
What call numbers are used to describe engineering related books? Try:
Searching for Ebooks
Accessing an Ebook
Google Books is
Google's effort to make it easier to find information -- in this case, the information found in print books. By partnering with libraries to digitize books from their collections, they aim to build a searchable catalog of the world's books online. - Google Books
Google Books Search