It seems that Kurt Lewin's contribution to social psychology is not sufficiently understood. Likewise, it can be said that young researchers have difficulty in following the historical course of concepts in social psychology and cannot understand the epistemological breaks here. Therefore, the aim of this study is to enable young researchers to understand the conceptual process in social psychology and to enable them to benefit more from Kurt Lewin's theory. In his Field Theory, Lewin developed ideas based on this social reality. Lewin’s approach to the group concept is far ahead of the period and resembles today's group approaches. Lewin accepts the existence of groups but builds his theory within the framework that the group has a dynamic nature. Lewin, while addressing group dynamics; takes into account many factors such as group context, and physical conditions. Within the framework of the "Three-Step Model", Lewin tried to examine the changes and behaviors in a group with an experimental method. The most unique feature of his studies is that he handles the context within a scientific framework and offers a methodological perspective to young researchers. As a result, the context, which is the main focus of criticism in the field of social psychology, is handled in a theoretical and methodical framework by Lewin. Based on this, the study will first give Kurt Lewin's Biography and then focus on Field Theory, Group Dynamics Approach, Action Research and current studies.
Keywords: Field theory, life space, group dynamics, action research