Composite Poker and the Theory of Thought" by Jack Rivers is a comprehensive guide to mastering the art of online poker in today's competitive landscape. It focuses on helping players adopt a blended strategy, combining Game Theory Optimal (GTO) and exploitative play, to rise from micro to high stakes in online Multi-Table Tournaments (MTTs). The book dives deep into the intricacies of GTO, helping readers understand its baselines, while teaching them how and when to deviate from the GTO framework to exploit opponents' weaknesses. With engaging, real-world examples and practical advice, Jack Rivers equips readers with the tools and knowledge they need to excel in the online poker world.