Aimed at the 2-6 age group, this innovative book applies the Haynes treatment to some of television's most popular children's characters. Inspired by the world-famous Haynes manuals, this book explains how Bob the Builder's friends - machines such as Scoop, Muck, Roley and Lofty - work and how they help Bob to get the job done. Complete with fascinating cutaway drawings, this brightly designed book will delight children and parents alike.