Susan Martineau is the author of lots of creative and educational activity books for b small publishing as well as being an integral part of the in-house creative team. A keen grossologist herself, she acknowledges the invaluable assistance and encouragement of her children, Alice and Will, when coming up with various ways to make a mess whilst learning about the world around us. Vicky Barker is an illustrator whose books include That's Not My Sticker Book: Zoo and The Usborne Big Colouring Book as well as Infographics for Kids , Facts , and The Order & Chaos Colouring Book . She resides in the United Kingdom.