It is a simple and easy book about twin trick by Mary Hooper. People who think they want to be a twin but unfortunately they aren't are expected to read this book as it is wholly about a pair of twin who trick the people as if they are one. It is a short swipe out book with just 86 pages in it which could be read in a few hours. Young Readers can try reading this as it is not that toughwith hard vocabularies.