I. Superoperators Time-Ordering and Density Operators. - II. Stochastic Processes. - III. An Introduction to the Stochastic Theory of E. S. R. Line Shapes. - IV. Projection Operators. - V. Cumulant Expansion. - VI. Linear Response Theory and Spin Rotation. - VII. Two Approaches to the Theory of Spin Relaxation: I. The Redfield-Langevin Equation II. The Multiple Time Scale Method. - VIII. ESR Relaxation and Line Shapes from the Generalized Cumulant and Relaxation Matrix Viewpoint. - IX. Spin Relaxation via Quantum Molecular Systems. - X. Electron Spin Relaxation in Liquids. Selcted Topics. - XI. Spin-Rotation Interaction. - XII. Electron Spin Relaxation in 6S State Ions. - XIII. Magnetic Resonance Line Shapes in Slowly Tumbling Molecules. - XIIIA. Appendix: Symmetry and the Slowly Tumbling Spin System. - XIV. ESR Line Shapes and Saturation in the Slow Motional Region The Stochastic Liouville Approach. - XV. Electron Spin Relaxation in Liquid Crystals. - XVI. Two Problems Involving ESR in Liquid Crystals. - XVII. The ESR Line Shape of Triplet Excitons in Disordered Systems: The Anderson Theory Approach. - XVIII. ESR Saturation and Double Resonance in Liquids. Language: English