"What It Takes" is a memoir by Stephen A. Schwarzman, the co-founder and CEO of Blackstone, one of the world's largest investment firms. The text draws on Schwarzman's personal and professional experiences to offer insights into building a successful business, navigating the world of finance, and becoming a leader. Schwarzman details the lessons he learned from his early years in business, his time working at Lehman Brothers, and the founding and growth of Blackstone. He reflects on key moments in his career, including his time at Fort Polk, his experiences navigating the 2008 financial crisis, and his philanthropic endeavors. The text also features reflections on the importance of building a strong corporate culture, the need for ethical leadership, and the role of personal relationships in achieving success.