The original story designed specifically for putting small children to sleep, Dr. Seuss's Sleep Book is full of wonderful yawning creatures who spread sleep thoughts at bedtime. More fun than counting sheep and more effective than the sandman, this book is the perfect remedy for children who don't want to go to sleep. As part of a major rebrand programme, HarperCollins is relaunching Dr. Seuss's bestselling books, including such perennial favourites as The Cat in the Hat, Green Eggs and Ham and Fox in Socks. In response to consumer demand, the bright new cover designs incorporate much needed guidance on reading levels, with the standard paperbacks divided into three reading strands - Blue Back Books for parents to share with young children, Green Back Books for budding readers to tackle on their own, and Yellow Back Books for older, more fluent readers to enjoy. Dr. Seuss's Sleep Book belongs to the Yellow Back Books range.