Book excerpt: Determination of Organic Structures by Physical Methods, Volume 4 is a seven-chapter text that discusses the refinements of some established physical methods for organic structure determination. Each chapter of this book examines specific physical method, including high-field and pulsed NMR, nuclear magnetic double resonance spectroscopy, and 15N, 13C, and 31P nuclear magnetic resonance. The historical developments, principles, instrumentation, and applications to organic chemistry of these methods are discussed. This work will be of value to organic and analytical chemists and researchers.