Marcella Marino Craver, MSEd, CAS, was a school counselor and school psychologist in New Jersey and New York public schools for over twenty years. She is the author of Learn to Study: A Comprehensive Guide to Academic Success, Shield Up! How Upstanding Bystanders Stop Bullying, and Chillax! How Ernie Learns to Chill Out, Relax, and Take Charge of His Anger. Chillax! was awarded the Mom's Choice Gold Award for Juvenile Books—Self-Improvement and the Gold Moonbeam Children's Book Award for Comic Books/Graphic Novels. She lives in New Jersey with her family.

Joanne Lew-Vriethoff was born in Malaysia and grew up in Los Angeles. After receiving her B.A in Illustration from Art Center College of Design in Pasadena, she worked in the television industry as a character and concept illustrator for clients pitching children's television shows.  She later moved to New York and trained as a graphic designer at a Design Studio working with various clients such as Columbia University, New School, and IJDG in NYC. She is the illustrator of many picture books, middle grade novels, early readers,and  educational books. Her favorite medium is pen and ink, mixed media. Joanne lives with her family in Amsterdam but continues to travel to L.A, NYC and Malaysia. Visit her at www.joannelewvriethoff.com and follow on Facebook: @JoanneLew-VriethoffIllustrator Twitter: @JLewVriethoff Instagram @JoanneLewVriethoff