This article presents an experience of art making and art therapy in prison. Based on the humanistic person centered therapeutic approach, art therapy is a powerful method of socializing and enhancing self-esteem in people with trauma and post-traumatic syndrom. Aesthetic brain, affective aesthetics and empathic creativity are recent concepts defined by neuroscience and art therapy joint research. The description and illustration of the group workshops’ protocole on deep exploration of beauty in everyday life, in nature and in culture, proves the importance of using non-verbal universal art communication for personal and social emotional regulation and balance.