In case you want to do some preparations for this class, I will recommend you read Chapters 1 and 2 on the following webpage (Preskill is an extremely famous guy in the field of Quantum Information) http://www.theory.caltech.edu/people/preskill/ph229 If you have any questions, feel free to email me at alfredz@stanford.edu. Good luck and I hope you will enjoy the beautiful and powerful formalism of quantum information theory! A.Z.