In spite of its central place, the concept of person-environment fit has received relatively little critical attention in community psychology. A closer look at this seemingly simple concept raises a number of questions and challenges for researchers. These challenges include problems associated with the complexity and multidimensionality of the fit construct; contamination of person and environment instruments in the measurement o f fit; the need for integration o f fit research with more sophisticated theoretical perspectives; and the need for integration o f fit research with other concepts and methods in community psychology. In response to these challenges, several recommendations are made to spur further progress in studies of personenvironment transactions. These recommendations include the development of a general multisystems measure of person-environment fit, the use of multidimensional outcome criteria, specification of the nature of the fit studied, and examination of the unique contributions of person, environment, and fit to behavioral predictions.