Sam Cartwright-Hatton is a clinical child psychologist who specializes in anxiety disorders and parenting processes.  She started out with an undergraduate degree at the University of Liverpool, and then a PhD at the University of Oxford.  This PhD was on anxiety disorders in adults and despite having almost no existing knowledge of or interest in clinical psychology, by the end of it, she was hooked.  At the end of the PhD, to the exasperation of her parents, who thought she might never leave university, she moved to Manchester to train as a clinical psychologist.  Since then, she has specialized in researching and treating anxiety in young children.  She has written around fifty publications, and this is her fourth book.  In 2011, she left rainy Manchester for sunny Brighton, where she continues her research at the University of Sussex and lives with her husband and little girl.