This is a fascinating look at practically everything. Well, at least 250 of the most fascinating inventions, from our prehistoric ancestors discovering how to use the wheel, make pottery, and paint, to the steam engine, the transistor, the automobile windshield wiper, computers, and the internet, GPS, DNA fingerprinting.
The author points out that one of the most fascinating aspect of studying the history of invention is discovering how one invention led to others. For example, the wheel rolling better on level ground leading to the first roads. The transistor has been essential to virtually every electronic device invented since. Invention of "accessories" such as the windshield wiper or airbags simply hadn't occurred to the original inventor or developer.
The book is uniquely arranged. Each invention is covered on two pages with the subject matter described in some detail on the left, an explanatory drawing or picture on the right. The year of its invention or importance is printed vertically in a block font down the left margin, enabling one to easily scroll thru the book to find the developments of that year. There is a contents index by page number and a very extensive index alphabetical index at the end.
I received this book for Christmas two years ago. It is the kind of book you can pick up now and then, read a few pages, and come back to later, at another time - in another year. Once several friends had skimmed its pages, I know a sizeable number of new copies flew off the shelves. I hope those new owners and giftees enjoyed reading of the "eureka moments that changed the world" as much as I did.