The third, revised and expanded edition of the book is a modern textbook on one of the most relevant disciplines in the university educational process - conflictology. The content of the educational material is presented by topics that include a summary of the general theory of conflict, psychology and sociology of conflict, methodological guidelines for conducting practical and seminar classes based on modern pedagogical technologies, and carefully selected test tasks. The workshop appendix includes the most popular methods of socio-psychological diagnostics, as well as the original curriculum for the conflictology course. The manual is intended for teachers, students studying the conflictology course, for practical psychologists and sociologists.