Rob Ives is a former math and science teacher and now a designer and paper engineer living in Cumbria, UK. He creates science- and project-based children's books, including Paper Models that Rock! and Paper Automata. He specializes in character-based paper animations and all kinds of fun and fascinating science projects, and often visits schools to talk about design technology and demonstrate his models. Eva Sassin is a freelance illustrator born and bred in the buzzing city of London. She has always loved illustrating, whether it be scary, fun monsters or cute, sparkly fairies. She is constantly drawing and carries a sketchbook everywhere . . . she has even drawn on the back of receipts if she's forgotten it! Eva loves combining her characters with unusual textures to give them more depth and keep them interesting. In her free time, she travels around London to visit exhibitions and small cafes where she enjoys sketching up new ideas and characters. She is also a massive film buff!