Amazon.com description: Product Description
: This is not a Print-on-Demand or facsimile book. It is a hardcover book with a dust jacket printed in 1951 by Harper & Brothers Publishers, New York. It was written by Kurt Lewin and edited by Dorwin Cartwright. Cartwright, in the foreward discusses the significance of Lewin's methodological and conceptual contributions to the development of social science. His most fundamental conceptual construct is that of "field." The first three chapters deal with basic problems of the philosophy of science, six chapters demonstrate the principles in several research fields, and the last chapter summarizes "the major theoretical and substantial findings derived from research." The dust jacket price is $5.00.