Frida Kahlo was a colourful Mexican artist who endured great pain and hardship, but used her bright, vivid brushstrokes to express her emotions and reveal her true personality. Isabel Thomas studied Human Sciences at the University of Oxford. She is a science writer and children's author who has been shortlisted for the Royal Society Young People's Book Prize, the ASE Science Book of the Year, and the Blue Peter Book Awards. Isabel also writes for children's science magazines Whizz Pop Bang and The Week Junior Science + Nature, and for science outreach projects. She is a primary school governor and parent of three young sons.Marianna Madriz is a freelance illustrator. Her clients include Creative Review, House of Illustration and The Eighty-Eight Journal.