The palm Quantum mechanics is contain at list two subjects such as Quantum mechanics I and Quantum mechanics II which applicable for undergraduate and postgraduate university students. I hope this book is good friendship with who read it again and again!. This manuscript is the bridge which skill transfer from one generation to another generation. It is an introduction to quantum mechanics which motivates the fundamental postulates of quantum mechanics by considering the weird behaviour of quantum particles ,reviews relevant concepts in classical physics before corresponding concepts are developed in quantum mechanics .Chapter 1 Development Of Quantum Mechanics,Chapter 2 Formulation Of Quantum Mechanics,Chapter 3 Time Independent Schrodinger Equation,Chapter 4 Approximation Methods,Chapter 5 Hydrogen Atom,Chapter 6 Scattering theory,Chapter 7 Statistical Quantum.