Annie Duke is an American former professional poker player and author known for her expertise in cognitive-behavioral decision science. She gained prominence in the poker world by winning a World Series of Poker (WSOP) gold bracelet in 2004 and became the leading money winner among women in WSOP history. Duke also won the prestigious WSOP Tournament of Champions in 2004 and the National Heads-Up Poker Championship in 2010. After retiring from professional poker, she transitioned into writing and public speaking, focusing on decision-making and critical thinking.

Duke is the author of several influential books, including 'Thinking in Bets: Making Smarter Decisions When You Don't Have All the Facts' and 'How to Decide: Simple Tools for Making Better Choices.' Her work combines insights from cognitive psychology with practical decision-making strategies, making her a sought-after speaker for corporate events and conferences. In addition to her professional pursuits, Duke is actively involved in charitable initiatives, having co-founded Ante Up for Africa and served on various nonprofit boards, including After School All-Stars and The Franklin Institute.