Auto-development seeks to give back to the client the control of his development influenced by Rogers, Gendlin, Bugental and Gestalt. The author relates the events of his professional experience which lead him to set himself the following objective; insure that the participants are capable of transposing their experiences (apprenticeship) to their day-to-day life without outside help. With this intention, the author states the eight basic assumptions of his approach and the principal concepts which are : >, process, recovering and responsability.