Laurence J. Peter (born Sept. 16, 1919, Vancouver, B.C., Can.—died Jan. 12, 1990, Palos Verdes Estates, Calif., U.S.) was a Canadian teacher and author of the best-selling book The Peter Principle: Why Things Always Go Wrong (1969).
Peter was educated in the United States at Western Washington State College (B.A., 1957; M.A., 1958) and Washington State College (Ph.D., 1963) and taught at the University of British Columbia before becoming a professor of education at the University of Southern California (1966–70). He wrote The Peter Principle with Raymond Hull; a satirical commentary on his experiences with educational and other bureaucracies, its central thesis was that “in a hierarchy, every employee tends to rise to his level of incompetence.” After being rejected by 30 publishers, it sold eight million copies and was translated into 38 languages.
Peter wrote eight more books, including The Peter Prescription (1972) and Peter’s Quotations (1977), in the same satiric vein; he also produced a serious four-volume study Competencies for Teaching: Systems of Accountability for Teacher Education (1975).