Joanna Nadin is the author of more than seventy books for children and young adults, including the bestselling Rachel Riley diaries, the critically acclaimed Eden and Undertow, and the Carnegie-nominated Joe All Alone, now being adapted for television. A former broadcast journalist, political speechwriter, and special adviser to the Prime Minister, she has a PhD on the concept of self in young adult literature, and lectures in Creative Writing at Bath Spa University. She lives in Bath with her daughter.