This easy-to-use guide allows the reader to select the right reagent for the desired reduction employed in organic synthesis. Topics given special emphasis in this work include: the compatibility between the reduction of the group in question and other functional groups partial reduction regio- and stereo selectivity of reductions. A foreword by Nobel Laureate H.C. Brown is also included. Three convenient sections cover: the enumeration on the most useful reagents reactivity of the functional groups towards reducing reagents access by hydride reduction of the main functions groups of organic chemistry in the form of synoptic tables.