Natasha Yim is an American Chinese author of fiction and non-fiction works for children and young adults. Born in Malaysia, she grew up in Singapore and Hong Kong, where she was captivated by the old Chinese legends she heard as a child. She is the author of Otto's Rainy Day (a Kids' Pick of the Lists selection), Cixi: The Dragon Empress , and Goldy Luck and the Three Pandas (a 2014 Junior Library Guild selection and 2015 Scholastic Book Club selection). Natasha lives in Ukiah, California, with her husband and three children. Pirkko Vainio was born in Finland and studied at the Academy of Art in Helsinki. She has written and illustrated over thirty children's books, which have been translated into fifteen languages. Among her books are The Dream House (winner of Frankfurt's Prix Octagonale Graphique), The Snow Goose (winner of the Picture Book Prize, Finland), and the Hans Christian Andersen tales The Nightingale and The Ugly Duckling . Pirkko's artwork has been exhibited throughout the world, while the Finnish Broadcasting Company has made two documentaries on her life and work.

She resides in Jämsä, Finland.