Sect. 1. The Basic Tools of Quantum Mechanics -- Sect. 2. Simple Molecular Orbital Theory -- Sect. 3. Electronic Configurations, Term Symbols, and States -- Sect. 4. Molecular Rotation and Vibration -- Sect. 5. Time-Dependent Processes -- Sect. 6. More Quantitative Aspects of Electronic Structure Calculations -- Sect. 7. Appendices -- App. A. Mathematics Review -- App. B. The Hydrogen Atom Orbitals -- App. C. Quantum Mechanical Operators and Commutation -- App. D. Time-Independent Perturbation Theory -- App. E. Point Group Symmetry -- App. F. Qualitative Orbital Picture and Semi-Empirical Methods -- App. G. Angular Momentum Operator Identities -- App. H. QMIC Programs --