Laura Numeroff is the New York Times bestselling author of many books for young readers in addition to the If You Give…series, including The Chicken Sisters and Laura Numeroff’s 10-Step Guide to Living with Your Monster. She lives in Los Angeles, California, and is involved with several children’s charities, including First Book. You can visit her online at www.lauranumeroff.com.

Nate Evans wanted to be a secret agent, a firefighter, or a magician when he was a kid. But he also loved to read and write. Now he has thirty-five children's books to his credit, including the New York Times bestsellers Ponyella and The Jellybeans and the Big Dance, both cowritten with Laura Numeroff, and the series Humpty Dumpty Jr: Hardboiled Detective, an IndieBound "Inspired Recommendation for Kids." He also illustrated Laura Numeroff's 10-step Guide to Living With Your Monster, among others.