Michael Dahl is the prolific author of the bestselling Goodnight, Baseball picture book and more than 200 other books for children and young adults. He has won the AEP Distinguished Achievement Award three times for his nonfiction, a Teacher's Choice award from Learning magazine, and a Seal of Excellence from the Creative Child Awards. And he has won awards for his board books for the earliest learners, Duck Goes Potty and Bear Says Thank You! Dahl currently lives in Minneapolis, Minnesota. For more than ten years, Oriol Vidal has worked as an illustrator and storyboard artist with agencies, publishers, and animation companies, developing children's books, character designs, concept art, and storyboards. Oriol was born in Barcelona, Spain, where he currently resides.