Joel Greenblatt knows a thing or two about investing. Best known for his best selling book on investing, The Little Book That Beats The Market, Greenblatt runs Gotham Funds with his partner Robert Goldstein and is best known for his Magic Formula method of valuation, which has been shown to generate annualized returns of more than 40% for investors. Sign up now and get our in-depth FREE e-books on famous investors like Klarman, Dalio, Schloss, Munger Rupert is a committed value investor and regularly writes and invests following the principles set out by Benjamin Graham.