Litwack was born in Santa Barbara, California, in 1929, and received his B.A. in 1951 and Ph.D. in 1958 from the University of California, Berkeley. He has taught at the University of Wisconsin, University of South Carolina, Louisiana State University and Colorado College. Litwack's interest in history was sparked by The Growth of the American Republic, by Samuel Eliot Morison and Henry Steele Commager. Litwack said, "The textbook was my first confrontation with history. I asked my 11th grade teacher for the opportunity to respond to the textbook's version of Reconstruction, to what I thought were distortions and racial biases. The research led me to the library—and to W. E. B. Du Bois's Black Reconstruction, with that intriguing subtitle: An Essay Toward a History of the Part which Black Folk Played in the Attempt to Reconstruct Democracy in America, 1860–1880. Armed with that book, I presented what I thought to be a persuasive rebuttal of the textbook." Historian Michael Les Benedict wrote that in 1961 "Leon Litwack showed how the federal government's pervasive support for slavery led to shameful treatment of free African Americans." Benedict was referring to pages 30–63 of chapter 2, titled "The Federal Government and the Free Negro" in Litwack's book, North of Slavery: The Negro in the Free States, 1790-1860. In 1964-2007 Litwack taught at the University of California in Berkeley, where he became the Alexander F. and May T. Morrison Professor of American History, instructing more than 30,000 students. For much of that time he taught the introductory course in post-Civil War American History. He gave his final lecture as a professor, "Fight the Power", on Monday, May 7, 2007 in Wheeler Auditorium. Litwack was elected to the presidency of the Organization of American Historians. An enormously popular and influential teacher, he was profiled in Newsweek's 2006 edition of the "Giving Back Awards", having been nominated by one of his former students. He has received two distinguished teaching awards. Litwack was presented with the Golden Apple Award for Outstanding Teaching in 2007 by the ASUC at the University of California, Berkeley. With a NEH Film Grant, he produced To Look for America in 1971. Been in the Storm So Long was a groundbreaking book on Reconstruction, published in 1979. It won the annual Pulitzer Prize for History and Francis Parkman Prize; next year its first paperback edition won a National Book Award. Years later he continued the investigation of race relations to the early 20th century with Trouble in Mind. In turn, the sequel to Trouble is How Free Is Free?: The Long Death of Jim Crow , which focuses on black southerners and race relations from the 1930s to 1955. A distinguished lecturer with the Organization of American Historians, Litwack lectures on these topics:
Pearl Harbor Blues: Black Americans and World War II
Trouble in Mind: African Americans and Race Reflections from Reconstruction to the Civil Rights Movement
On Becoming a Historian
To Look for America: From Hiroshima to Woodstock
Fight the Power: Black Americans and Race Relations after the Civil Rights Movement
Selected works
;Books
North of Slavery: The Negro in the Free States, 1790-1860
How Free Is Free?: The Long Death of Jim Crow. The Nathan I. Huggins Lectures
;Articles
The Blues Keep Falling, in Ethnic Notions: Black Images in the White Mind.
Hellhound on My Trail: Race Relations in the South from Reconstruction to the Civil Rights Movement, in Opening Doors: Perspectives on Race Relations in Contemporary America, 3-25.
Telling the Story: The Historian, the Film Maker, and the Civil War, in Robert B. Toplin, Ken Burns' Civil War: The Historians' Response.
The Making of a Historian, in Paul A. Cimbala and Robert F. Himmelberg, Historians and Race: Autobiography and the Writing of History.
Pearl Harbor Blues, Regards Croises Sur Les Afro-Américains / Cross Perspective on African Americans, 303-318.