We have two getting started guides. One for using static links and another for using dynamic links.
Google's mission is to organize the world's information and make it universally accessible and useful. To help make the information we've organized in Google Book Search more useful, we provide several different ways to learn about Google's books and link to them.
The Google Book Search Book Viewability API enables developers to:
Google Book Search provides a standard linking format that allows developers to link to books using ISBNs, LCCNs, and OCLC numbers.