The Vallejo Adult School is a learning center that offers educational services and free classes for adults in the community. It has been in operation since 1928 and is located in Vallejo, Calif. The school offers classes in a variety of programs, such as computer skills, General Education Diploma (GED) preparation, adult basic education, citizenship and parenting, as well as the English as a Second Language program. The Vallejo Adult School is a part of the Vallejo City Unified School District, which operates more than 25 educational institutes with an enrollment of over 17,500 students. In addition, it organizes a range of recreational and social events.