The aim of the book is to infuse confidence in readers in tackling problems on a wide spectrum of topics in Quantum Mechanics. Each topic is dealt with in a generally self-contained manner and the text is interspersed with a adequate numbers of solved examples and a large number of exercise problems. To expedite the learning process, the author has incorporated into the book several student aids. The book would be useful to undergraduate, post graduate students as well as researchers in this field.