Dr. Thor Hanson is a Guggenheim Fellow, a Switzer Environmental Fellow, and an award-winning author and biologist. His books include The Triumph of Seeds, The Impenetrable Forest, Feathers, and the children's favorite Bartholomew Quill as well as Star and the Maestro, illustrated by Matt Schu. Thor Hanson's writing has earned many accolades, including the John Burroughs Medal, the AAAS/Subaru SB&F Prize, and two Pacific Northwest Book Awards. His many media appearances have included NPR's Fresh Air, PRI's The World and Science Friday, The Current on CBC, and Book Lust with Nancy Pearl. He lives with his wife and son on an island in the Pacific Northwest.

Galia Bernstein loves animals and has been studying and drawing them since she was two years old. She is the bestselling author of three picture books, which have been published in fifteen languages, and the illustrator of many more. Galia Bernstein lives in Brooklyn, New York, with a very small dog and a large cat.