Psychoeducation is one of the most effective psychosocial forms of treatment for psychoses. It appears to prevent recurrence of psychosis and hospitalization periods and to increase treatment compliance. Psychoeducation should be included in the treatment and rehabilitation of psychoses as part of the overall rehabilitation, and is particularly important for persons with first-episode psychosis and their family. At least the vulnerability-stress model, basics of pyschosis as well as the recognition and management of warning signals and long-term symptoms should be discussed with the patient and her/his family.