I am seeking resources that cover the Mathematics of Quantum Mechanics in order to prepare for an exam. The course is not rigorously mathematical, and as such, I am looking for materials comprehensible to the average Physics student. Websites, books, online courses/lecture notes are all acceptable. In particular, it would be good if the following topics are covered: Hilbert Spaces, Operators (Unitary, Hermitian, Projection etc.), Tensor Products, Angular Momentum & Rotation, Density Matrices Any suggestions at all would be appreciated.