This 2nd edition addresses all relevant concepts about the game of poker, from its legality, its application in the academic field, including the legal sciences, to its perspective as a business, and of course, the tax aspects of the game. Poker is the sport of the mind that is present on five continents, being practiced as a hobby, as an academic tool or as a business, due to its plurality in mathematical and psychological concepts.About the author Fabio Silva has a degree in Accounting, Judicial Mediator from the National Council of Justice of Brazil, a law student, professional poker player and CEO of Litoral Poker Brazillitoralpoker.com.brChapter 1 - The History of the Poker GameChapter 2 - The practice of poker game under Brazilian lawChapter 3 - Poker, From Leisure to BusinessChapter 4 - The Basics of University Poker4.1 Mathematical, psychological and academic aspects of the game - Game Theory4.2 Poker Strategies Applied to Legal Sciences4.3 Artificial Intelligence X Emotional I