Few recognize his name yet Yousuf Karsh is acknowledged as one of the 20th century's leading portrait photographers; his iconic images of Humphrey Bogart Ernest Hemingway Winston Churchill Albert Einstein and Elizabeth II are instantly recognizable. A young refugee from the ethnic cleansing of Turkish Armenians in 1916 Karsh became a world traveler over his 60-year career; when he died in 2002 at the age of 94 he left a legacy of 50000 portraits. His remarkable life is told here by cultural historian Maria Tippett winner of the Governor General's Literary Award and the Macdonald Prize for Canadian History in a biography that includes 60 of Karsh's most celebrated portraits and reveals his techniques behind the camera.