JOHN MARTZ is an illustrator, cartoonist and designer. He is the author and illustrator of A Cat Named Tim, Evie and the Truth about Witches and Destination X, and the illustrator of How to Give Your Cat a Bath, Dear Flyary, Do Frogs Drink Hot Chocolate? and Who's On First?. His work has also appeared in MAD Magazine and The Nib. John is the art director for Penguin Random House Canada Young Readers, and he lives in Toronto.