This book provides quick access to quantum mechanics without dealing with a true textbook that demands proper specialized studies in physics (and related mathematics) for about a couple of years. It consists of three parts: basic formalism, formal development, and ontological issues. The 70 figures are a crucial instrument for becoming acquainted i

Introduction. Basic Notions. Classical Mechanics. The Superposition Principle. The Quantum State as a Vector. The Quantization. The Complementarity Principle. Formal Developments. Uncertainty Principle. Quantum Dynamics. Angular Momentum and Spin. Conceptual Problems. The Measurement Problem. Non{Locality and Non{Separability. Quantum Information. Interpretation. Bibliography. Author Index. Subject Index. Solutions to Selected Problems.