A fascinating and informative read. Even if you are not a computer or technology person, this historical account of Charles Babbage's quest to build, first his Difference Engine, and later his more advanced Analytical Engine will engross and enthrall. The portrait presented of the man himself is sympathetic, yet unflinchingly honest. The clear, concise descriptions of his machines and their functions are easy for anyone to understand. This adds up (no pun intended) an informative, enjoyable read. The account of the modern-day attempt to build a functioning Difference Engine from Babbage's original plans is also quite exciting. Highly recommended for fans of history, technology and biography.