Following the huge success of How It Works: The Wife and How It Works: The Husband, this great new addition to the humour series will be a perfect gift for grandparents and grandparents-to-be. Author: Hazeley, Jason & Morris, Joel Publisher: Penguin Puffin Format: Hardback Publication Date: 20/10/2016 ISBN: 9780718184308 B-Code: B026956 Pages: 56 Dimensions: 170x112mm