Famous for his Just! children's book series and for the animated TV series -- What's with Andy? -- that it inspired, this extremely popular Australian writer is also notable for his Bad, Treehouse, and Schooling Around book series, as well as for such standalone titles as Once Upon a Slime and Stinky Stories. Before publishing his first children's book in 1997, he performed lead vocals for rock bands called Skippy the Butcher and Gothic Farmyard.