Mancke, E. 1991. Richard D. Brown. Knowledge is Power: The Diffusion of Information in Early America, 1700-1865. New York: Oxford University Press, 1989. Pp. ix, 372, illus. Historical Studies in Education / Revue d’histoire de l’éducation. 3, 1 (May 1991), 122-125. DOI:https://doi.org/10.32316/hse/rhe.v3i1.872.