Helaine Becker is a bestselling children’s author of more than ninety books, including Hubots, Monster Science, Zoobots, The Big Green Book of the Big Blue Sea and Lines, Bars and Circles. She is a two-time recipient of the Lane Anderson Award and a winner of the Silver Birch Award and the Red Cedar Award. She lives in Toronto, Ontario.;Illustrator Marie-Ève Tremblay’s work has appeared on posters, stamps and television, as well as in numerous magazines and children’s books, including Inside Your Insides and Lines, Bars and Circles. She lives in Montreal, Quebec.