Peter Anthony Dale Collier (born June 2, 1939) is a writer and publisher based in California. He was the founding publisher of Encounter Books in California and held that position from 1998 until he resigned in 2005. The company moved from San Francisco to New York City, and Collier was replaced as publisher by Roger Kimball. He continues as a consultant to the company.
Initially allied with liberal causes, Collier has moved right and collaborated with conservative writer David Horowitz on many projects over many decades, notably as co-editor of Ramparts; and publishing articles on Horowitz's FrontPageMagazine.com.
He has served as a co-author with Horowitz on several history and critical books (including The Anti-Chomsky Reader (2004)). He was a co-founder with Horowitz of the Center for the Study of Popular Culture. Collier was a co-organizer of the Second Thoughts conferences for ex-leftists who had moved to the right.
He was born in Hollywood, Los Angeles, California. He attended the University of California, Berkeley, earning a B.A. in English in 1961. He served as a civil rights activist in the South in 1964.
Returning to California, Collier taught Freshman English at UC Berkeley from 1964 to 1969. He became literary editor of Ramparts Magazine in 1967. He served as editor of that magazine from 1968 to 1972 along with David Horowitz, whom he had become acquainted with at Berkeley in the late 1950s. In 1968, he signed the "Writers and Editors War Tax Protest" pledge vowing to refuse tax payments in protest against the Vietnam War. He returned to UC Berkeley as a Lecturer in Creative Writing from 1978 to 1981.