Marxist Workers' School (German: Marxistische Arbeiterschule) (MASCH) was an educational institute founded in the winter of 1925 in Berlin, by the Berlin city office of the Communist Party of Germany (KPD).[1] Its function was to enable workers to learn the basics of proletarian life and struggle, to teach the basic tenets of Marxism.[1][2] It was co-founded by Hermann Duncker, Johann Lorenz Schmidt and Eduard Alexander. Hermann Duncker became the director of school. The school became very successful and by 1930, it had 4000 students in 200 courses, which prompted KPD officials to build 30 other schools in German cities e.g. Dresden and Chemnitz.[1] After the seizure of power by the National Socialists in the spring of 1933, the schools were closed.