About the book: 2015 / Erich Fromm is a German sociologist and philosopher, one of the founders of neo-Freudianism. Simone de Beauvoir is a French writer, a philosopher of the existentialist movement. In the book presented to your attention, Erich Fromm and Simone de Beauvoir, from the position of neo-Freudian philosophy and existentialism, analyze deviant (“deviant”) sexual behavior, its causes, forms and types - that is, everything what is called vice. Some insight into this behavior is contained in the bestselling book Fifty Shades of Gray by E. L. James; In this book, the leitmotif is the infamous work of D. Easton and K. A. List “Ethics of B***w”. In addition to Fromm and de Beauvoir, such cult philosophers and psychoanalysts as Louise Andreas analyze “50 shades of vice” -Salomé, Leil Lowndes, Maurice Blanchot, Jean Baudrillard and others.