Nice to read, insightful and greatly illustrated
The book is great. a great part of it is devoted to precomputers. I mean, calculating machines. But nevertheless it is very enjoyable. You'll learn a lot from it. The photographs are very nice. And there are lots of them: there is no single pair of pages without a photograph. The style is careful, and well organized. There are plenty of data and curious facts about the history of computers.
Highly recommended. It is a pity you can find it only in the second hand market.