DK Eyewitness Books (Library Binding)
Invention: Discover the Fascinating Story of Inventions and Learn How They Have Changed the
DK Children, 9781465409027, 72pp.
Publication Date: July 1, 2013
A fascinating look at the world's earliest simple machines — wheels, gears, pulleys, and levers — to today's complicated telephones and plastics, Eyewitness: Invention presents the stories behind amazing inventions and how they changed the world.