The Best-Selling Leadership Book of All Time Just Got Better! HarperCollins and John C. Maxwell are celebrating the milestone anniversary of Maxwell’s New York Times bestselling book The 21 Irrefutable Laws of Leadership with the publication of a new revised and updated 25th Anniversary Edition. Maxwell has gone through every word of this book and updated it for the next generation of leaders. He has added new insights to these timeless laws and included lessons learned since he originally wrote the book. He removed dated stories and replaced them with fresh ones that apply to today’s world of business. What Maxwell didn’t change are the powerful leadership truths that have been helping people become better leaders for the last quarter century. This is still the best book on leadership people can buy, whether they want to learn leadership on their own, develop as leaders in a group, or teach leadership to others as a mentor. Readers new to Maxwell, as well as lifelong fans will want to get this new edition of the leadership book that has sold millions of copies in the United States and around the world.