What is a muscle? How do they work? Why are they so important? Find out the answers to all of these questions in this information book, filled with detailed illustrations and photographs. Publisher: HarperCollins Publishers Author(s): Anna Claybourne Number of pages: 16 Collection: Collins Big Cat Progress Publication date: 2012 Dimensions: 164 x 171 x 2 Cover type: Paperback / softback Illustrator: Graham White