I am astounded by this book. ‘Quantum Mechanics – The Theoretical Minimum..’ is an absolute gem, right up there with Feynman’s ‘Lectures on Physics’ but still a very different work; where Feynman is comprehensive, Susskind is essential in his development of a conceptual distillate that motivates and unifies the requisite mathematical apparatus. In doing so he exhibits a rare pedagogical honesty by virtue of a penetrating exposition that invites the reader to a deep understanding of the subject. Thus armed, one could indeed ‘do’ Quantum Mechanics. This ‘Go Rin No Sho’ of physics is written by a true master and for which I gladly offer my highest recommendation.