Psychologist Pedro Bolgeri systematizes his experience, compiling, classifying and describing more than 230 techniques, exercises, games, practices, and dynamics of proven efficacy, that can be used in work with human groups, both in clinical contexts and in educational and community spaces. The techniques, described in a didactical manner, have their origin in different theoretical approaches, currents of thought and methods, attached or close to the Humanist Psychology (Reich and Lowen’s Body Therapies, Perls’ Gestalt, Moreno’s Psychodrama, Schultz’s Encounter Groups, Desoille’s Directed Dream, Gendlin’s Experiential Therapy, among others). A very practical book/manual to work with groups.