Ebook: Introduction to Quantum Mechanics

This book is okay, but it's not phenomenal. It would benefit from a second edition to correct some of the typos, but given that the author is now deceased, that seems unlikely. If you are buying this book for a class, I recommend supplementing your academic arsenal with an additional text, perhaps "An Introduction to Quantum Physics" by French and Taylor. If you are simply looking for a book on the subject for your own personal use, I highly recommend looking at other texts instead.