  This book is extremely mathematical in emphasis. There is less emphasis on conceptual development, and it is best used after one has acquired a conceptual understanding of QM and wants to see the mathematical development. The approach is very revealing. It is a difficult text, in part because some of the formalism is abstract and unconventional, but it is well worth the effort to comprehend. The problems throughout are excellent, but again unfortunately, solutions are not included in the text.  