1 Introduction to Liquid Crystals.- 2 Dynamics of Nuclear Spins.- 3 Orientational Order.- 4 Molecular Field Theories of Flexible Nematogens.- 5 Nuclear Spin Relaxation Theory.- 6 Director Fluctuations and Spin Relaxation.- 7 Rotational and Translational Dynamics.- 8 Internal Dynamics of Flexible Mesogens.- 9 Multiple-Quantum and Two-Dimensional NMR.- Appendix A Relations Between Cartesian and Spherical Tensor Components.- Appendix B Rotations, Euler...