JOANNA KERR has an MA in Sequential Illustration from the University of Brighton and an MFA in Fine Art from the Ruskin School of Drawing and Fine Art, Oxford. She has worked as an illustrator for many years, and has moved from the medium of linoprint into digital illustration. As well as creating her own delightful illustrations, Joanna also teaches illustration on a Foundation degree programme which, she says, constantly informs her practice and challenges and inspires her work. She also has a cat called Lulu and enjoys gardening and country walks. SEAN McMANUS is a Code Club volunteer, teaching programming and web design at a junior school in London, UK. He is the author of Scratch Programming in Easy Steps, and Web Design in Easy Steps, and the co-author of Raspberry Pi For Dummies. Visit his website at www.sean.co.uk for Scratch resources and more.