A Short Course in Quantum Information Theory / Lecture Notes in Physics Bd.713 (PDF)

From the reviews:

"The best things about this book are its brevity and clarity. In around 100 pages it provides a tutorial introduction to quantum information theory, including problems and solutions. … it’s worth a look if you want to quickly get up to speed with the language and central concepts of quantum information theory, including the background classical information theory." (Craig Savage, Australian Physics, Vol. 44 (2), 2007)

"This book presents a short introduction to the basic concepts of quantum information theory. The organization of the chapters is rather original since the concepts and methods are presented first in the classical and then in the quantum language. This expository trick efficiently highlights the differences between the two ‘worlds’ and the advantages provided by quantum information processing. … it is suitable for both undergraduate and graduate students." (Dario Tamascelli, Mathematical Reviews, Issue 2008 d)

"The book by L. Diósi provides a concise, rather consistent and ‘thin’-book approach for teaching the quantum information theory which the author recommends ‘for all physicists, mathematicians and other people interested in universal and integrating aspects of physics.’ The idea of this ‘thin’-book … has to provide the readers with the self-contained and consistent material that would be sufficient for them to turn to concrete problems, largely without any suggestion to read further thick books." (Eugene Kryachko, Zentralblatt MATH, Vol. 1157, 2009)