Katherine Schwarzenegger Pratt is a New York Times bestselling author, mother, and host of BDA Baby. As a passionate animal advocate, Katherine works as an Ambassador for Best Friends Animal Society (bestfriends.org) and the ASPCA (aspca.org). She is also a Global Ambassador for the Special Olympics. Katherine lives with her family in Los Angeles.

Petra Brown is an acclaimed children's book illustrator living in North Wales in the United Kingdom. Her first big picture book was Beth Shoshan's If Big Can...I Can, which was shortlisted for the Booktrust Early Years Awards for Best Emerging Illustrator. She has since illustrated numerous children's books and is the author and illustrator of When the Wind Blew. Find her online at www.petrab.co.uk and on YouTube @petra.illustration.