What is an ISBN?

An ISBN, which stands for International Standard Book Number, is a 10 digit code that uniquely identifies a book. An ISBN is issued for each edition of a book, so that the precise book title and edition can be located.

The ISBN can usually be located on the back cover of a book near the barcode as well as within the first few pages of a book.

Example:


The ISBN, 0201700735, identifies the book being searched for as:
The C++ Programming Language by Bjarne Stroustrup.
Special Edition.
Published by Addison-Wesley on Feburary 2000.


Additional Information
U.S. ISBN Agency - http://www.isbn.org
ISBN on Wikipedia - http://en.wikipedia.org/wiki/ISBN