A special 20th anniversary edition of the very first Horrid Henry book, in which Henry tries to be perfect for a day, learns to dance, argues with his arch-nemesis Moody Margaret, and goes on vacation. Featuring a die-cut cover and brand new additional material, including the twenty most frequently asked questions from Horrid Henry fans and readers about the world's most popular cheeky boy – Does Horrid Henry have a girlfriend? What is the worst thing Perfect Peter has ever done? Were Horrid Henry's mom and dad ever naughty? Check out the answers! Horrid Henry is an award-winning series with 20 million copies sold, illustrated by Tony Ross, who also illustrates David Walliams' children's books and his own picture books.