Marianne Celano , PhD, ABPP, Marietta Collins , PhD, and Ann Hazzard , PhD, ABPP, worked together for more than two decades as Emory University School of Medicine faculty members serving children and families in Atlanta. All three psychologists have been involved in community advocacy efforts focused on children's behavioral health and social justice.

Jennifer Zivoin has always loved art and storytelling, so becoming an illustrator was a natural career path. She has been trained in media ranging from figure drawing to virtual reality, and earned her bachelor of arts degree with highest distinction from the honors division of Indiana University. During her professional career, Jennifer worked as a graphic designer and then as a creative director before finding her artistic niche illustrating children's books.