Beatty, Edward C. O. William Perm as Social Philosopher. New York: Columbia University Press, 1939. This scholarly work is an in-depth study of Penn's social, political, and economic ideas.

Bronner, Edwin B. William Penn's "Holy Experiment": The Founding of Pennsylvania, 1681-1701. New York: Temple University Publications, 1962. This scholarly history provides a detailed examination of Pennsylvania's early years.

De Hartog, Jan. The Peaceable Kingdom: An American Saga. New York: Atheneum, 1971. A long but absorbing novel about Quakerism's beginnings in Britain and spread to Pennsylvania and westward.

Dunn, Mary Maples. William Penn: Politics and Conscience. Princeton, NJ: Princeton University Press, 1967. Concentrates on Perm as a political thinker and practical politician.

Punshon, John. Portrait in Grey: A Short History of the Quakers. London: Quaker Home Services, 1984. An excellent and readable history of the Quakers written by a British Quaker scholar.

Tolles, Frederick B., and E. Gordon Alderfer, eds...