Tracey is the author of Hubble Bubble, Granny Trouble. She was born and grew up in industrial South Wales and now lives in a hidden valley in Gloucestershire with her husband, two children and an ever-increasing menagerie of devilishly-cute-but-sometimes-rather-naughty pets. A trained teacher, Tracey has always had a passion for wonderful literature and began writing for children in 2006. Her books for other publishers include The Grunt and The Grouch series about two riotous trolls, and numerous picture books including The Little White Owl. Joe Berger is the illustrator of Hubble Bubble Granny Trouble. When Joe was sixteen, his mum admonished him for doing nothing but whizzing about entertaining himselfA". Now in his early forties, Joe continues to whizz about entertaining himself - but tries to include as many other people as he can in the process - as a children's author, illustrator and cartoonist who also makes the occasional award-winning animated short film and title-sequence. He is co-creator of the Berger & Wyse food cartoon in the Guardian magazine each saturday, and has illustrated numerous books, inside and out, for children and grown-ups. When not working he loves to play modern family strategy boardgames. Joe lives in Bristol with his wife, three daughters, two cats and a small dog, all of whom refuse to play boardgames with him. His mum still wishes he'd calm down and start being sensible.