William Ackman: Everything You Need to Know About Finance and Investing in Under an Hour. WILLIAM ACKMAN, Activist Investor and Hedge-Fund Manager We all want to be financially stable and enjoy a well-funded retirement, and we don't want to throw out our hard earned money on poor investments. But most of us don't know the first thing about finance and investing. Acclaimed value investor William Ackman teaches you what it takes to finance and grow a successful business and how to make sound investments that will grant you to a cash-comfy retirement. The Floating University Originally released September 2011.