About the Author
PAUL D. SONKIN is an analyst and portfolio manager at Gabelli Funds and previously spent 14 years at the helm of The Hummingbird Value Fund. For 16 years he was an adjunct professor at Columbia Business School and is coauthor of Value Investing: From Graham to Buffett and Beyond.
PAUL JOHNSON runs Nicusa Investment Advisors and is an Adjunct Professor at Columbia Business School and the Gabelli School of Business at Fordham University. He is a contributing annotator to The Most Important Thing Illuminated (by Howard Marks), co-author of The Gorilla Game, and a contributing author to Columbia Business School: A Century of Ideas.