In recent years, behavioral and cognitive therapies have become an essential aid to behavioral disorders and addictive behaviors. Smoking cessation, compulsive games, phobias, bulimia, these brief approaches solve many problems that can ruin the life. Cognitive behavioral therapies (CBT) focus on the visible part of the iceberg, the one that causes pain. The practice is centered on cognition that is sometimes erroneous which the individual cultivates himself. These can generate a state of suffering and neurotic behavior (addiction, phobias, OCD) that the therapy will then focus on correcting. From the family of brief therapies, CBTs rely on an active relationship between the therapist and his patient in learning new behaviors.