Tom Jamieson moved to London from Australia in 1990 where he decided to try his hand at writing for radio. Luckily the BBC liked his work and he's been writing for shows such as The News Quiz and other topical sketch shows since 1995. Tom also writes for television programmes such as Dead Ringers, and his main job since 1999 has been writing for Private Eye. Tom first started writing for children when he co-wrote the children's sitcom Scoop for CBBC between 2009 and 2011. Now he is turning his hand to children's books, and Sproutzilla Versus Christmas is Tom's first picture book with Macmillan.
Mike Byrne grew up on the Wirral near Liverpool before moving to Wales to study Illustration at Glyndwr University. He began his career as a designer for a greetings card company and then became a studio manager for a licensed stationery designer before leaving to fulfil his dream of illustrating children's books. Mike now lives in Surrey with his wife, cat and two sons where he spends his days doodling and illustrating children's books fuelled only by tea and biscuits. Mike illustrated the Jack's Mega Machines series for Simon & Schuster. Sproutzilla Versus Christmas is his first title with Macmillan.