A professional gambler is an individual who engages in gambling as a primary source of income, employing skill, strategy, and extensive knowledge of games and odds. Unlike casual players, they meticulously analyze probabilities and manage their bankrolls to maximize profits while minimizing risks. Professional gamblers often specialize in specific games, such as poker, blackjack, or sports betting, and may use advanced techniques like card counting or statistical analysis. Their lifestyle can be unpredictable, requiring discipline and resilience, as they navigate the highs and lows of the gambling world.