Now a Major Musical! The sparkling debut children's novel from David Walliams, number one bestseller and fastest growing children's author in the country, with sparkling new cover look to tie in with later books. Dennis was different. Why was he different, you ask? Well, a small clue might be in the title of this book... Author - Walliams, David Illustrator - Blake, Quentin Number of Pages - 240 Format - Paperback Publisher - HarperCollins Published - 2015-07-21