Helaine Becker is the bestselling author of more than 90 books for children and young adults, including the #1 Canadian national bestseller A Porcupine in a Pine Tree (Scholastic Canada) and the international bestseller Counting on Katherine: How Katherine Johnson Saved Apollo 13 (Henry Holt). Her books have won multiple awards and been translated into ten languages. A New York native, Helaine has lived in Toronto, Canada for more than 20 years.