Mem Fox is Australia's most highly regarded picture book author. Her first book, POSSUM MAGIC, is the bestselling children's book ever in Australia, with sales of over 4 million. In the U.S., TIME FOR BED and WILFRID GORDON MCDONALD PARTRIDGE have each sold over 1 million copies. Mem has written over 35 picture books for children and five nonfiction books for adults, including the bestselling READING MAGIC, aimed at parents of very young children.

Judy Horacek is an Australian cartoonist, artist, writer, and children's book creator. Her cartoons have been pinned up on doors and walls all over the world. She is also sometimes a visiting artist for schoolchildren and an after-dinner speaker for grownups. She is the illustrator of Mem Fox's WHERE IS THE GREEN SHEEP? as well as the author and illustrator of seven other children's books.