Laura Vanderkam is the author of several time management and productivity books, including most recently I Know How She Does It: How Successful Women Make the Most of Their Time (Penguin, June 9, 2015). This book, based on a time diary study of 1001 days in the lives of professional women and their families, shows how people who have it all really make it all work. She is also the author of What the Most Successful People Do Before Breakfast, and 168 Hours. Her work has appeared in publications including Fast Company, USA Today, and the Wall Street Journal, and she lives outside Philadelphia with her husband and four children. She blogs at www.LauraVanderkam.com.