Britannica Educational Publishing 
100 Most Influential Inventors of All Time 

If necessity is indeed the mother of invention, then the individuals profiled in this volume should be considered the most laudable of all midwives. They each saw a need and met it. Readers will learn more about the lives and methodologies of well-known inventors such as Benjamin Franklin and Thomas Edison, and become familiar with several more whose creations have sometimes outstripped their personal fame.