Some proponents of the theory, or parts of the theory, include John Holt, John Taylor Gatto, Neil Postman, Paul Goodman, George Dennison, Richard Farson, and others.
Other critical pedagogues known more for their anti-schooling, unschooling, or deschooling perspectives include Ivan Illich, John Holt, Ira Shor, John Taylor Gatto, and Matt Hern.