The stated objective of the book is to describe and explain by discussion of principles the various means by which adsorption may be used in organic chemistry for the separation of mixtures. This purpose is admirably achieved in spite of the enormous quantity of work in this field that has been reported in the literature. Limiting his discussion to types of manipulations and the principles involved rather than giving detailed procedures for specific separations, the author has been able to indicate the wide applicability of adsorption to organic separations. He has emphasized liquid-vapor, liquid-liquid, and liquid-solid interfaces, since they are of prime interest to the organic chemist. References to the literature on other interfaces are nevertheless given. Adsorbents, their properties and sources are discussed fully. Little discussion is included on biochemical implications, surface active agents, wetting, detergency, or industrial applications, although references to the literature are given where possible.