Elements of Information Theory 2nd Edition (Wiley Series in Telecommunications and Signal Processing)
"As expected, the quality of exposition continues to be a high point of the book. Clear explanations, nice graphical illustrations, and illuminating mathematical derivations make the book particularly useful as a textbook on information theory." (Journal of the American Statistical Association, March 2008)"This book is recommended reading, both as a textbook and as a reference." (Computing Reviews.com, December 28, 2006)