The adult education category overlaps all three of the above categories. Adult primary education includes Workers' Primary Schools, Peasants' Primary Schools, and literacy classes. Adult secondary education includes radio/TV specialized secondary schools, specialized secondary school for cadres, specialized secondary schools for staff and workers, specialized secondary schools for peasants, in-service teacher training schools and correspondence specialized secondary schools.
Adult higher education includes radio/TV universities, cadre institutes, workers' colleges, peasant colleges, correspondence colleges, and educational colleges. Most of the above offer both two- and three-year short-cycle curricula; only a few also offer regular undergraduate curricula.