This work is intended for those who would like to read something, but not too much, about the life stories of some of the most remarkable engineers born since the Renaissance. There are five or six profiles in each of nine chapters, making 51 engineers altogether. The emphasis is mainly on their varied life stories, not so much on the details of their achievements. Although I knew none of them personally – most of them died long before I was born – I know something of their works. In France I have sailed along Riquet's Grand Canal de Languedoc, been impressed by the fortifications of Vauban and ascended the Eiffel tower. In England, I have seen mighty beam engines at work, and in museums. I have ridden on the footplates of steam engines, and I have frequently used Brunel's Great Western Railway. In the United States, I have walked across Roebling's Brooklyn Bridge and have inspected the Wrights' biplane in the Smithsonian National Air and Space Museum. In the Second World War, I had first-hand experience of the V-1 flying bomb and the V-2 ballistic missile. In Russia, I have flown in one of Tupolev's aircraft. My house is full of electrical appliances, as is the car I drive. I write this book on a laptop computer, the descendant of Babbage's analytical engine, which was to be powered by steam.