For psychotic disorders, age of onset typically peaks at 22 years for males and 25 for females. Onset of psychotic symptoms or disorders is very rare prior to the teen years, yet early symptoms sometimes emerge in adolescence. Therefore, treatment services for young people with psychosis need to be readily available. Intervening early is crucial for youth with psychosis, given the strong association between duration of untreated symptoms and poorer short- and long-term outcomes. For more information, see Vol. 14, No. 4  of the Children’s Mental Health Research Quarterly.