Julie Beer is an author and editor, who has written numerous children's books on everything from national parks to space to her favorite subject of all--animals! Julie is based in California.

Andy Smith is an award-winning illustrator, and studied illustration at the University of Brighton and the Royal College of Art, London. His work combines illustration and typography to create images that have humor, energy and optimism executed with a handmade, hand-printed, tactile feel. He lives by the sea in Hastings, East Sussex, UK.

Britannica Group is a global education leader with over 250 years of dedication to seeking out facts and providing insight into the mysteries of the universe. Its beloved Encyclopaedia Britannica is the world's oldest English-language general encyclopedia, first published in 1768 in Edinburgh, Scotland. Today, Britannica continues to create innovative and engaging learning experiences through books, digital content and educational tools. Over three thousand expert contributors have helped make Britannica what it is today, including former U.S. presidents, professional athletes, Nobel laureates, and Pulitzer Prize winners. Britannica's mission to inspire curiosity and the joy of learning helps build the world's future thinkers and innovators. They are based in Chicago, Illinois.