Laura Vanderkam is the author of several time management and productivity books, including Off the Clock, I Know How She Does It, What the Most Successful People Do Before Breakfast, and 168 Hours. Her 2016 TED talk, "How to Gain Control of Your Free Time," has been viewed more than 5 million times. She regularly appears in publications including the New York Times, the Wall Street Journal, Fast Company, and Fortune. She is the co-host, with Sarah Hart-Unger, of the podcast Best of Both Worlds. She lives outside Philadelphia with her husband and four children, and blogs at LauraVanderkam.com.