Danica McKellar is the New York Times bestselling author of groundbreaking math books, including Goodnight, Numbers, Ten Magic Butterflies, Bathtime Mathtime, Do Not Open This Math Book, and the middle school hit Kiss My Math, and is a summa cum laude graduate of UCLA with a degree in mathematics. She is also well known for her acting roles on The Wonder Years, The West Wing, and multiple Hallmark Channel movies, and as a quarterfinalist on Dancing with the Stars. She lives with her family in Los Angeles. Find her on Facebook, Twitter, and Instagram (and more) at @danicamckellar, and visit McKellarMath.com.

Alicia Padrón is known for her sweet characters and soft colors. She lives in Florida with her husband, two children, and dogs Lucy and Luna.