The book is an introduction to quantum mechanics for chemists, beginning with the early experiments and models that responded to those unique experimental observations and leading to the solution of the Schrodinger equation. It proceeds through the development of atomic orbitals, molecular bonding with simple models (dot structures and VSEPR), to molecular orbitals. Non-covalent bonding is covered in a subsequent chapter, and the text concludes with some simple applications of the models that were introduced to stress the usefulness of quantum theory to chemists. Most chapters are followed by a small set of exercises that are intended to aid in the reader's understanding of the concepts presented in that chapter. Readers interested in the mathematical details of the development will find the two supplementary chapters approachable. The presentation is designed to be read and understood by undergraduates with important mathematical points integrated into the chemistry development without overwhelming the reader.