"This book is based on a course of lecture, which has been given for a number of years to physics students. As the title implies, it is written for people who have not previously studied quantum mechanics. The emphasis is on concepts and the mathematical machinery has been kept to a minimum. The reader is never assumed to know how to do anything more complicated than differentiate the product of two functions. On the other hand, the introduction to new physical ideas is based on an attempt to get right to the heart of the matter from the start. Thus much less emphasis than usual is put on wave functions, and the Schro?dinger equation turns up as a special case of the eigenvalue equations which determine the possible values of any quantum observable."--Preface.