Right now, you can search over the full text of some seven million books through Google Book Search

Whenever you do a Google web search, you're also searching the Google book index; any relevant hits will appear in your search results, and clicking on a result will take you to the relevant page in the book, where you can browse a few more pages and learn where to borrow or buy it.

The books in Google Book Search come from two sources.

The Library Project

Google has partnered with renowned libraries around the world to include their collections in Book Search. For Library Project books that are still in copyright, our results are like a card catalog; we show you info about the book and, generally, a few snippets of text showing your search term in context.

For Library Project books that are out of copyright, however, you can read and download the entire book.

The Partner Program

Google has also partnered with over 20,000 publishers and authors to make their books discoverable on Google. You can flip through a few preview pages of these books, just like you'd browse them at a bookstore or library. You'll also see links to libraries and bookstores where you can borrow or buy the book.

You can learn more about, and sign up for, the Partner Program here.