Lettie Cowman was an American author and missionary known for her inspirational writings. Born in 1861, she dedicated her life to spreading the Christian faith and encouraging others through her work. Cowman is best known for her devotional book, Streams in the Desert, which has inspired countless readers since its publication in 1925. In addition to her writing, Lettie Cowman served as a missionary in Japan alongside her husband, Charles Cowman. Her experiences in the mission field greatly influenced her literary work, allowing her to share her spiritual insights and reflections on faith and perseverance.