This is like a history textbook of the computing generation.
It's basically a collection of interviews with notable programmers, done in a very natural and readable style. If you're a techie, or you're in the technology industry in any way, then you should read it to get a sense of where "it" all came from, and especially to hear from some of the people who made it happen.
The contrast between the different interviews is interesting in its own right - you can go from one guy to the next to get a completely different or even opposing viewpoint, so the end result is a broad perspective.
It made me nostalgic for those days I spent hunched over a ZX Spectrum keyboard POKEing memory to see what happened :-)