Julia Cook

Cook taught, then worked as a school counsellor in Nebraska with a master's degree in elementary school counselling, and wrote her first book while still doing the job. My Mouth Is a Volcano concerns a boy who cannot stop interrupting, and hands him a technique for holding the words in rather than a telling off. More than eighty titles have followed, on tattling, lying, personal space and worry, and they are bought by classrooms rather than sold to children directly. Sales have passed two million.