The late Roma Gans was a co-founder of the Let’s-Read-and-Find-Out Science series. How Do Birds Find Their Way?, illustrated by Paul Mirocha, is one of her many titles.Holly Keller is also the illustrator of From Tadpole to Frog by Wendy Pfeffer and Who Eats What? by Patricia Lauber. She lives in West Redding, CT.