Charles F. haanel

Charles F. Haanel (1866–1949) was a visionary American author, philosopher, and successful entrepreneur. Born on May 22, 1866, in Ann Arbor, Michigan, he began his career as an office boy before growing into a prosperous businessman. In 1905, he founded the Continental Commercial Company, becoming a leader in sugar, coffee, and mining industries. Haanel is best known for The Master Key System (1912), a pioneering work in personal development and New Thought philosophy, which teaches mental discipline, concentration, and the power of thought to manifest success.