Original Title: Inventions And InventorsThis 2 Volume easy-to-use set focuses on 20th century inventions and inventors that have had impact on the world we live in. It is a popular addition to the Magill's Choice series and examines 195 of the most significant inventions of the 20th century. More than half the articles include biographical sidebars on the people behind the inventions. The overall selection of topics has an appealing eclectic quality. A broad range of inventions is covered, from brownie cameras and the Sony Walkman to electrocardiograms and modern computers. The set has articles on inventions in fields as diverse as agriculture, biology, chemistry, computer science, consumer products, drugs and vaccines, energy, engineering, food science, genetic engineering, medical procedures, music, photography, physics, synthetics, transportation, and weapons technology.