Pulleys by M Dahl
A clear and straightforward introduction to the science and technology of machines by author Chris Oxlade, who is a graduate engineer and an experienced and accomplished writer for children, specialising in technology and science. * Show-cases the parts of each machine, how each machine works and how they are used in the world around us. * Bright and informative artwork and vivid photographs support the clear and informative text. Ages: 6+ Size: 265 x 210mm Price: $35.99 HB