Father of flow theory Csikszentmihalyi died at the age of 87
epa09535492 (FILE) - The photo dated 20 May 2011 shows Hungarian born Distinguished Professor of Psychology and Management at Claremont Graduate University and former head of the department of psychology at the University of Chicago Mihaly Csikszentmihalyi, architect of the theory of 'flow', reads a lecture under the title Csikszentmihalyi's Flow Is Good Business at the TEDx Danubia Klub in Budapest, Hungary. Csikszentmihalyi died at the age of 87 on 20 October 2021. EPA/Bea Kallos