"The 21 Irrefutable Laws of Leadership" is a book by John C. Maxwell that outlines essential principles for effective leadership. Each law is designed to help individuals understand the qualities and behaviors that contribute to successful leadership. Maxwell emphasizes that these laws are universal and can be applied in various contexts, from business to personal relationships. The laws cover a range of topics, including the importance of influence, trust, and vision. For example, the "Law of Influence" states that true leadership cannot be mandated; it must be earned through relationships and respect. Overall, the book serves as a guide for anyone looking to enhance their leadership skills.