John Cunliffe worked for many years as a librarian and a teacher and is now a full-time writer. His first book, Farmer Barnes Buys a Pig, was published in 1964. He is best known as the creator of the hugely popular characters Postman Pat and Rosie and Jim and is the author of around 190 books for young children, including five volumes of poetry, as well as numerous picture books and collections of stories. He has also written a stage play, The Twelve Days of Christmas, which was presented by the Hull Truck Theatre Company during their 1997 season. He is currently working on scripts and books for new Postman Pat series, which are in production with Entertainment Rights Ltd.