Introduction: Historical. High Resolution NMR. The Theory of NMR: Nuclear Spin and Magnetic Moment. Classical Mechanical Description of NMR. Quantum Mechanical Description of NMR. Effect of the Boltzmann Distribution. Spin-Lattice Relaxation. Line Widths. Saturation. Macroscopic Magnetization. The Bloch Equations: Nuclear Induction. The Rotating Frame of Reference. Adiabatic Passage: Ringing Problems. Instrumentation and Techniques: Basic NMR Apparatus. Requirements for High Resolution NMR. Subject Index.