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LAURA VANDERKAM is the author of What the Most Successful People Do Before Breakfast, All The Money In The World, 168 Hours, and Grindhopping. She is a frequent contributor to Fast Company's website, and a member of USA Today's Board of Contributors. Her work has also appeared in The Wall Street Journal, City Journal, Scientific American, Reader's Digest, Prevention and other publications. She lives with her husband and three children outside Philadelphia.