A great book. Despite the cheesy-looking cover there is a lot of technical detail in this book.

It is also worth noting that there is now a second edition containing additional material. http://www.amazon.co.uk/Apollo-Springer-Praxis-Books-Explora...

Agreed. I'm currently half-way through the latest edition. It is extremely interesting, well-written, thoughtful, and intelligent. What a fascinating era that was.