illustrated by Federico Mariani and Parko Polo. llustrated by Federico Mariani and Parko Polo. illustrated by Mariani Federico, Parko Polo illustrated by Nick Sharratt and Sue Heap. illustrated by Federica Iossa ; words by Sam Taplin. illustrated by Leo Lionni and Jan Gerardi illustrated by Nick Sharratt and Sue Heap illustrated by Mar Ferrero and Nikki Dyson illustrated by Richard Morgan and Terry Burton. illustrated by Helen Rowe, Karen Sapp and Gareth Llewellyn