Vivian French is a highly acclaimed children's author who has written more than 250 books during the course of her career, including Caterpillar, Butterfly, The Tales from the Five Kingdoms series and Yucky Worms. Her recent work includes the critically acclaimed picture book The Most Wonderful Thing in the World and her two previous books with Marta Kissi, The Adventures of Alfie Onion and The Cherry Pie Princess. Vivian teaches on the illustration course at Edinburgh School of Art, and helped to found the mentoring scheme Picture Hooks for aspiring young illustrators. She lives in Edinburgh. Follow Viv on Twitter under the handle @fivekingdoms, or visit her at her website: www.vivianfrench.com. Marta Kissi is a new and exciting talent in the world of children's book illustration. She studied illustration and animation at Kingston University – graduated in 2010, and completed her Masters at the Royal College of Art in 2012. Her previous work for Walker includes artwork for The Adventures of Alfie Onion and The Cherry Pie Princess, and the UK jacket for Better Nate Than Ever. She lives in London. Follow Marta on Twitter under the handle @MartaDlugolecka, or visit her at her website: www.kissikissi.com.