This major new series reproduces an authoritative selection of the most significant articles in different areas of psychology. It focuses in particular on influential articles which are not found in other similar collections. Many of these articles are only available in specialized journals and therfore are not accessible in every library. This landmark series will make a contribution to scholarship and teaching in psychology. It will imorove access to important areas of literature which are difficult to locate, even in the archives of many libraries throughout the world. Important features in each book make the series an essential research and reference tool, including introductions written by the individual editors providing a lucid survey of difference branches of psychology. The pagination of the original articles has been deliberately retained to facilitate ease of reference. A comprehensive author and subject index guides the reader instantly to major and minor topics within the literature.