This book is wonderful in the way that it introduces the mathematics of quantum mechanics starting from the point of view of quantum computing, i.e. starting with the quantum bit (the qubit). The mathematics seems to flow naturally from the physics in this book. Leonard Susskind's online lectures are always excellent, including the Theoretical Minimum series. I should say that this book is well written introductory text (and assumes some basic mathematics, complex numbers and linear algebra), and is neither popular science nor a second course in quantum mechanics. But, as other reviewers have noted, the Kindle edition of this book curtails some equations at the end of the line, and the book in general has a number of minor technical errors. This book is in bad need of an edit, which does sometimes detract from following the text.