Entropy and Information Theory

3 March 2013

This site provides the current version of the first edition of the book Entropy and Information Theory by R.M. Gray in the Adobe portable document format (PDF). This format can be read from a Web browser by using the Acrobat Reader helper application, which is available for free downloading from Adobe.

The current version is a corrected and slightly revised version of the second printing (1991) of the Springer-Verlag book of the same name, which is now out of print. This corrected version is made available with the permission of Springer-Verlag. This will be the final version of the First Edition of the book, but I will continue to correct any typos found by me or others. The most recent corrections were made in March 2013. The Second Edition was published in 2011 by Springer.

Permission is hereby given to freely print and circulate copies of this book so long as it is left intact and not reproduced for commercial purposes. I welcome all typos and comments. Revised 3 March 2013.