Vivian Vande Velde

Vivian Vande Velde is the author of more than twenty books for children and young adults. She has received an Edgar Award, five of her novels have been named Best Books for Young Adults by the ALA, and 8 Class Pets + 1 Squirrel ÷ 1 Dog = Chaos was nominated for seven state awards. She lives in Rochester, New York.

Steve Björkman has illustrated many picture books, chapter books, and greeting cards. He illustrated both 8 Class Pets + 1 Squirrel ÷ 1 Dog = Chaos and Squirrel in the House, the two earlier books about Twitch. He lives in Irvine, California.