A complete overview of the key concepts of non-relativistic quantum theory for the beginner, this book uses examples taken from the modern research literature in atomic, nuclear and elementary physics, the author focuses on the visual presentation of both quantitative information and qualitative concepts, including imagery of quantum wavefunctions in one-, two-, and three-dimensional systems, and an enhanced presentation of momentum-space methods. An emphasis on the classical limit of quantum mechanics/wavepackets, and on numerical and approximation techniques, together with separate chapters on classical wave phenomena, probability and two-dimensional quantum physics, and an appendix on Hamiltonian theory make this volume a comprehensive reference to every aspect of quantum mechanics.