Isabel Thomas (Author) Isabel Thomas has written more than 150 books about science for young readers and has been shortlisted for the Royal Society Young People's Book Prize, the Association of Science Education Book of the Year, the English 4-11 Picture Book Awards and the Blue Peter Book Awards. Aurelie Guillerey (Illustrator) Aurelie Guillerey studied at the Ecole Superieure des Arts Decoratifs in Strasbourg and now works as an illustrator in France. Her characters are often inspired by her children and she likes to work with bright, bold colours to create energetic illustration.