This coming semester I will be taking phy 401 (mostly Quantum Mechanics I think). Anyway, I was planing to get a jump start by reading some of the text book ahead of time, but when I opened it ("Quantum Mechanics" by Gasiorowicz, 3rd ed.) my head started to spin. Clearly there is a foundation missing which we will be covering in class, but which I do not yet have. My question is this, can anyone recomend either a book or websight that I can look at inorder to get myself up to speed ahead of time? Perhaps just enough so that I can get stared on the real material.