Heather Hartt-Sussman, born in Montreal, graduated from Brandeis University and attended the Sorbonne. She has been a copywriter for BCP in Montreal, a reporter for the Hollywood Reporter, editor-in-chief for international news for TV Guide in French Canada, where she was columnist of the popular "Heather Hartt in Hollywood" and host of E! Entertainment Television's The Gossip Show. She is author of the acclaimed picture books Nana's Getting Married, Here Comes Hortense! and Nana's Summer Surprise. Her first two books about Noni, Noni Says No and Noni Is Nervous, were both finalists for Ontario's Blue Spruce Award. Heather Hartt-Sussman lives in Toronto.
Geneviève Côté has illustrated numerous books for children, including the first two Noni stories, and is the author-illustrator of Bob's Hungry Ghost as well as a number of other picture books. She has received many awards and honors for her work, including Canada's most prestigious literary prize, the Governor-General's Award for Children's Illustration. Her art has also been featured in such publications as the New York Times and the Wall Street Journal. Geneviève Côté lives in Montreal.