The book 'Mastery' by Robert Green, a renowned author with multiple international bestsellers, was originally written in 2012 and reprinted in 2013. It consists of an introduction and six chapters, lacking a conclusion. Green has a unique approach of crafting his books by selecting intriguing or influential individuals and delving into their stories to build his narrative. In this book, he again follows this pattern. The central theme of 'Mastery' revolves around the concept of having a superior understanding and control over reality, others, and oneself.