This is a very serious book. Ryszard Praszkier is a researcher at the University of Warsaw whose main interest is profound, peaceful social transition for the good of all. His entire life has been dedicated to social change and he was active about social change for Solidarity rose to power and the Wall came down. Ryszard is also an erudite sociologist. SOCIAL ENTREPRENEURSHIP adeptly examines numerous “how-to” theories of social change. It compares and contrasts conceptual models which fit some situations but not others – and sometimes even seem to be in conflict with each other.