Kes Gray is a British author who exploded onto the shelves in 2000 with his debut and prize-winning picture book, Eat Your Peas . He has since published more than twenty-five Daisy books, with sales topping more than a million copies. In 2014, his picture book phenomenon Oi Frog! spawned the most popular picture book series of recent times, with sales of over 2.5 million copies worldwide. Mark Chambers is an author and illustrator of children's picture books and young fiction. He studied Illustration at University and since graduating has been represented by the London and New York Illustration agency, Bright Group International. In 2017 Mark was shortlisted for the AOI World Illustration Awards and in 2013, The Roald Dahl Funny Prize. In the same year he went on to win the Sheffield Children's Picture Book Award and was also highly commended in the young fiction category.

Some of Marks' clients include Hodder Children's, Bloomsbury, Macmillan, Simon & Schuster, Amazon, and Marks & Spencer. Mark lives and works in France with his wife and their very bouncy hound.