Kurt Lewin was a German-American psychologist, often referred as the ‘founder of social psychology’. Born into a Jewish family in Prussia and educated in Germany, he began his career as a Privatdozent at the Psychological Institute of the University of Berlin. In spite of his lack of English knowledge, he soon became known in the USA for his innovative ideas and methods. As a result, he was able to migrate to the USA shortly after the Nazis captured power in Germany, teaching first at Cornell University and then at the University of Iowa and finally heading the Research Center for Group Dynamics at Massachusetts Institute of Technology. During his stay in the USA, he started working on social, organizational, and applied psychology and became known for his contribution to group dynamics, action research, T-groups. Although he died in 1947, a survey published in 2002, ranked him as twentieth century’s 18th-most cited psychologist.