"Mastery" by Robert Greene is a self-help book that explores the themes of personal growth, success, and motivation. Published in 2012 by Penguin Publishing Group, the hardcover edition measures 9.3 inches in length, 6.3 inches in width, and 1.2 inches in height, weighing 19.2 ounces. With 352 pages, the book offers practical advice and insights for readers looking to improve their skills, habits, and mindset. Written in English, this motivational and inspirational work is a valuable resource for those seeking to enhance their personal and professional lives.