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? and Good Night, Sleep Tight as well as the author and illustrator of seven other children's books.