Mac Barnett is a New York Times bestselling author of over 18 books for children, including two Caldecott Honor�winning collaborations with Jon Klassen: Sam & Dave Dig a Hole, which also won the E. B. White Read Aloud Award, and Extra Yarn, which won both the Boston Globe�Horn Book Award and the E. B. White Read Aloud Award. His picture books Leo: A Ghost Story, illustrated by Christian Robinson, and The Skunk, illustrated by Patrick McDonnell, were named two of the ten Best Illustrated Books of 2015 by the New York Times. Mac writes the Brixton Brothers series of mystery novels and, with Jory John, the New York Times bestselling Terrible Two series. He lives in Berkeley, California.Jory John is a New York Times bestselling author of books for both children and adults. He is a two-time E. B. White Read Aloud Honor recipient. Jory work includes the New York Times bestselling Terrible Two series, the award-winning picture book Goodnight Already!, its companion I Love You Already!, the national bestseller All My Friends Are Dead, and a sequel, All My Friends Are Still Dead. Jory has also written for the New York Times, the San Francisco Chronicle, the Believer, McSweeney Internet Tendency, and BuzzFeed, among many other publications. For more than six years, Jory worked as the programs director at 826 Valencia, a nonprofit writing and educational centre in San Francisco Mission District, founded by Dave Eggers. He lives in Portland, Oregon.