Chris McDonnell is the author and designer of The Art of Invader Zim,Steven Universe: End of an Era, Adventure Time: The Art of Ooo, and BoJack Horseman: The Art Before the Horse. He has designed books on Ralph Bakshi, Bill Plympton, the Joker, Wonder Woman, and many more. He is also a contributor to the Cartoon Brew animation blog. He creates animation for television programs that have included Tim and Eric Awesome Show, Great Job! (Adult Swim), Portlandia (IFC), Comedy Bang! Bang! (IFC), and Yo Gabba Gabba! (Nickelodeon). He lives in Philadelphia, Pennsylvania.Rebecca Sugar is a New York Times bestselling author and the creator of the Emmy Award-winning show Steven Universe on Cartoon Network. She previously worked as a writer and storyboard artist on Cartoon Network's animated series AdventureTime. She is also the author of Steven Universe: The Tale of Steven.