Gilbert, Martin.Churchill: A Life. Henry Holt, 1991. A single-volume condensed version of the eight-volume official biography.
Gilbert, Martin.In Search of Churchill: A Historian's Journey. Henry Holt, 1991; Random House, 2000., Churchill's official biographer describes his search for Churchill's character, struggles, and achievements.
Churchill, Randolph S., and Martin Gilbert.Winston S. Churchill. Houghton Mifflin, 1966-1988 . Massive, official biography begun by Churchill's son and continued by historian Gilbert.
Jenkins, Roy.Churchill. Farrar, Straus & Giroux, 2001. A comprehensive biography by a veteran biographer.
Keegan, John.Winston Churchill. Viking Penguin, 2002. The author, a military historian, focuses on Churchill as soldier and war leader in this capable and brief biography.
Lukacs, John.Churchill: Visionary, Statesman, Historian. Yale University Press, 2002. Explores the many sides and the contradictions of Churchill, his failures as well as his successes.