Jo Witek is the author of Hello in There! She is an author, journalist, and screenwriter who has published several books in France. She lives in Hérault, France. Christine Roussey is the illustrator of Hello in There! She works in advertising, as well as with newspapers, magazines, and publishers. She lives in Paris.
Christine Roussey is the author-illustrator of My Lazy Cat and the illustrator of Hello in There, In My Heart, Brave As Can Be, All My Treasures, and In My Room. She works in advertising, as well as with newspapers, magazines, and publishers. She lives in Paris.