This textbook provides a concise yet comprehensive introduction to the principles concepts and methods of quantum mechanics. It covers the basic building blocks of quantum mechanics theory and applications illuminated throughout by physical insights and examples of quantum mechanics such as the one-dimensional eigen-problem the harmonic oscillator the Aharonov-Bohm effect Landau levels the hydrogen atom the Landau-Zener transition and the Berry phase. This self-contained textbook is suitable for junior and senior undergraduate students in addition to advanced students who have studied general physics (including classical mechanics electromagnetics and atomic physics) calculus and linear algebra. Key features: Presents an accessible and concise treatment of quantum mechanics Contains a wealth of case studies and examples to illustrate concepts Based off the author's established course and lecture notes . Language: English