First published in 1981. Routledge is an imprint of Taylor & Francis, an informa company.

This is the first comprehensive survey of Descriptive Psychology. It provides a systematic account of the basic formulations and characteristic methodologies of this discipline which was developed by Peter G. Ossorio of the University of Colorado at Boulder. Dr. Ossorio defines Descriptive Psychology as "a set of systematically related concepts which is designed to provide formal access to all the facts and possible facts concerning persons and behavioróand therefore everything else as well."