Joel Greenblatt is the managing principal and co-chief investment officer of Gotham Asset Management, the successor to Gotham Capital, an investment firm he founded in 1985. He has been a professor on the adjunct faculty of Columbia Business School for over two decades, and he is a cofounder and former chairman of the Success Academy Charter Network. His books include You Can Be a Stock Market Genius (1997), The Little Book That Beats the Market (2006), and The Big Secret for the Small Investor (2011).