Dale Carnegie (1888-1955) was an American writer and lecturer, and the developer of famous courses in self-improvement, salesmanship, corporate training, public speaking, and interpersonal skills. Born in poverty in Missouri, he worked various jobs before developing his famous public speaking courses.
Carnegie's training programs and books have influenced millions of people worldwide. His approach combines practical business advice with insights into human psychology, emphasizing that success comes from understanding and working with human nature rather than fighting against it.