Dale Carnegie

Dale Breckenridge Carnegie was an American writer, lecturer, and self-improvement pioneer.

Born into poverty in Missouri in 1888, he became a successful salesman before pursuing his passion for public speaking.

Carnegie developed courses in self-improvement, salesmanship, and interpersonal skills, which formed the basis of his bestselling book "How to Win Friends and Influence People" in 1936.

He changed his surname from Carnagey to Carnegie, capitalizing on the famous industrialist's name.

Carnegie's work focused on responsibility assumption and changing others' behavior through one's own reactions.

His books and courses have influenced millions worldwide in personal and professional development.