During World War I he joined the French army and served as an interpreter and later a liaison officer to the British army. His first novel, Les silences du colonel Bramble, was a witty but socially realistic account of that experience. It was an immediate success in France. It was translated and also became popular in the United Kingdom and other English-speaking countries as The Silence of Colonel Bramble. Many of his other works have also been translated into English (mainly by Hamish Miles (1894 - 1937)), as they often dealt with British people or topics, such as his biographies of Disraeli, Byron, and Shelley.
During 1938 Maurois was elected to the prestigious Académie française.
When World War II began, he was appointed the French Official Observer attached to the British General Headquarters. In his official capacity he accompanied the British Army to Belgium. He personally knew the main politicians of the French Government, and on 10 June 1940, he was sent on a mission to London. The Armistice ended that mission. Maurois was demobilized and traveled from England to Canada. He wrote of these experiences in his book, Tragedy in France.
"André Maurois" was a pseudonym that became his legal name in 1947.
- Lelia, ou la vie de George Sand (Lelia, or the life of George Sand)
- Histoire d'Angleterre (History of England)
- Aspects of Biography (1929)
- Patapoufs et Filifers (Fattypuffs and Thinifers) (1930)
- The Next Chapter: The War Against the Moon (1928)
- Byron (first published in hardback by Cape in 1930)
- Captains and Kings
- Lyautey (1931)
- The Edwardian Era (1933)
- The Silence of Colonel Bramble
- Prophets and Poets
- The Thought Reading Machine
- The Miracle of England
- The Art of Living
- Tragedy in France
- I Remember, I Remember
- The Miracle of America
- Les Origines de la Guerre de 1939
- Woman Without Love
- My American Journal
- Olympio: The Turbulent Life of Victor Hugo
- To an Unknown Lady
- Prometheus: The Life of Balzac
- The Life of Sir Alexander Fleming: Discoverer of Penicillin
- Adrienne, ou, La vie de Mme de La Fayette
- Ariel the Life of Shelley
- The World of Marcel Proust
- Titans: A Three-Generation Biography of the Dumas
- Call no man happy: Autobiography (Reprint society, 1944)
- ↑ Maurois, 1940, Foreword
- Maurois, Andre (1940). Tragedy in France. Denver Lindley (translator). Harper & Brothers.
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