This article presents a comprehensive definition and conceptual model of person-organization fit that incorporates supplementary as well as complementary perspectives on fit. To increase the precision of the construct's definition, it is also distinguished from other forms of environmental compatibility, silch as person-group and person-vocation fit. Once defined, commensurate measurement as it relates to supplementary and complementary fit is discussed and recommendations are offered regarding the necessity of its use. A distinction is made between the direct measurement of perceived fit and the indirect measurement of actual person-organization fit, using both cross- and individual-level techniques, and the debate regarding differences scores is reviewed. These definitional and measurement issues frame a review of the existing literature, as well as provide the basis for specific research propositions and suggestions for managerial applications.