Winner of The Royal Society Young People's Book Prize 2016 David Macaulay's How Machines Work uses pop-ups & award-winning illustrations to demonstrate the technology of six simple machines Follow the mad antics of Sloth & his side-kick Sengi as they try to break out of the zoo with the help of levers pulleys screws inclined planes wedges & wheels Brought to life through pop-ups & pull-outs meaning you can explore six simple machines from bicycles & cranes to hammers & drills through interactive science Packed with engaging hands-on activities David Macaulay's How Machines Work will gear kids up for scientific & engineering greatness!