This manual, as well as the work referred to has been designed to meet an important demand from trainers, coordinators of groups and participants in task groups. Large amount of material present (role-playing, case studies, exercises ...) and ordered together as a complete course in human relations. The exercises presented are the result of careful selection carried out among a lot, constantly renewed, of human relations exercises. Some activities are rooted in prestigious centers such as National Training Laboratories, the Esalen Institute and the Institut Psychologie Appliquée. With the help of this Manual, psychologists, coordinators and training groups poodrán do their job more effectively and conscious, and may use or integrate it contains exercises in their own training programs.