[gyger]

I am still a big fan of this book.

https://www.amazon.com/Quantum-Computation-Information-10th-...

It exists also as a digital version.

[jessriedel]

Agreed, it's still excellent. Obviously it doesn't contain the many new results that have appeared since it's final edition, but that's irrelevant for the learning the basic information-theoretic aspects of quantum mechanics.