The Eyewitness series is a collectable visual encyclopedia of childrens' reference books. Illustrations throughout - including photography - bring each object vividly to life to provide an eyewitness view of the natural world. Coverage of each subject provides a collection of knowledge and offers an exciting, fresh approach to the wonders and workings of the world around us. This book provides an informative look at the world's most outstanding inventions. Highlights inventions from the simplest flint tools to today's sophisticated electronic devices. Concentrates on the most important inventions - the ones that have influenced contemporary life.