Dale Carnegie is a pioneer in human relationships and self-improvement, and his name is synonymous with positive social interaction and effective communication. He began lecturing businessmen and professionals in New York in 1912, and changed the lives of many people with his deep understanding and practical communication skills that penetrate the essence of human beings.

Since Carnegie's book “The Theory of Human Relationships” was first published in 1936, it has been loved by millions of readers around the world and has become a bible for improving human relationships. His approach is based on simple yet powerful principles, which help drive positive change in both personal and professional relationships.

Carnegie's philosophy focuses on avoiding criticism, understanding others' positions, and encouraging people with genuine interest and praise. These principles still hold true today, and his education helps people around the world learn better ways to communicate, exercise leadership, and achieve success in relationships.