Leonardo Angelini is an Associate Professor in Theoretical Physics at the University of Bari, Italy. He is author of about 60 publications in international journals in various research fields: approximation methods in quantum mechanics and field theory, modeling in elementary particle physics, phase transitions in statistical mechanics, non-equilibrium phenomena in extensive chaotic systems, and algorithms for data analysis with applications to elementary particle physics and biomedical signals. He has taught a variety of courses in Theoretical Physics, including Field Theory, Statistical Mechanics, Quantum Mechanics, Advanced Mathematical Methods of Physics, Simulation Techniques, and Computational Physics Laboratory. He currently teaches Quantum Mechanics for the bachelor's degree in Physics.

Preface.- Chapter 1 Operators and wave functions.- Chapter 2 One-dimensional systems.- Chapter 3 Two and three-dimensional systems.- Chapter 4 Spin.- Chapter 5 Time evolution.- Chapter 6 Time-independent perturbation theory.- Chapter 7 Time-dependent perturbation theory.- Chapter 8 Identical particles.- Chapter 9 Scattering (Born approximation).- Chapter 10 WKB approximation.- Chapter 11 Variational Method.- Chapter 12 Useful formulas.