Kathryn Olmsted is a professor of history at the University of California, Davis. She is the author of four books: Right Out of California: The 1930s and the Big Business Roots of Modern Conservatism (2015), Real Enemies: Conspiracy Theories and American Democracy, World War I to 9/11 (2009), Red Spy Queen: A Biography of Elizabeth Bentley (2002), and Challenging the Secret Government: The Post-Watergate Investigations of the cia and fbi (1996). She has also coedited a book on the history of the Central Intelligence Agency and published several journal articles and book chapters on conspiracy theories, government secrecy, espionage, counterintelligence, and anticommunism.
- American Entry into World War II
- California Farmworkers from the New Deal to Cesar Chavez
- Labor Battles of the 1930s