John school is a form of educational intervention aimed at clients of prostitutes, who are colloquially known as 'johns' in North America. John schools are usually a diversion program for people - almost exclusively men - arrested for soliciting the services of a prostitute, or another related offense. This often acts as an alternative to criminal prosecutions. However, in some jurisdictions, courts may sentence men to attend a john school program as a condition of probation. John schools often last for one day. Their focus is often on the experiences and harms of prostitution, such as the violence associated with prostitution, the sexually transmitted disease risks of prostitution, and the effects of prostitution on families and communities. Whether the John school is a diversion program