A writer and graphic designer since 1986. Started the Creative and Graphics company Moran Campbell da Vinci in 1990 producing corporate ID, advertising (newspapers, magazines, point of sale, posters) and packaging (specialising in toys) for, among other clients, Harrods and Hamleys.

Writing credits has included over 40 books for children, a monthly comic for children, hundreds of cartoon strips for newspapers and magazines worldwide, puzzles for books, newspapers and magazines, comedy sketches for TV and a short comic play for BBC radio 5.

Steve Martin is a writer, former English teacher, and author of numerous children's books on a wide range of subjects, including The Boys' Book of Adventure, Numberland, and Ivy Kids' Academy series.

Dominique Enright is a freelance writer and editor.

Her previous works for Michael O'Mara Books include The Wicked Wit of Winston Churchill and The Wicked Wit of Jane Austen, and she is also the compiler and editor of selections from the verse of Burns, Keats, Kipling and Wordsworth. She lives in London with her husband, son and two daughters.

Lottie Stride has written many books for children, including The Time Travellers' Handbook, Write Every Time and Meerkat Mischief.

She lives in London with her three lovely children. She enjoys walking on beaches, eating potatoes, and listening to Beethoven. If she could choose one superpower she would fly through time.

Tracey Turner has written more than 30 books for children on a variety of subjects, from rude words to the entire history of the universe.

Her books include the best-selling 101 Things You Need to Know, the acclaimed Comic Strip series, the hilariously funny World's Worst Jobs and many, many more. She lives in Bath with Tom and their son Toby.

David Shephard is an illustrator who lives in the UK.