[willvarfar]

These recommendations are spot on.

As so much of Alan's posthumous fame is for cracking the naval enigma in WW2, I'd recommend starting out by first reading "The Code Book" by Simon Singh for general background.

Personally I find Alan's work on ACE the most fascinating. Sadly I can't really find much about it beyond Hodge's biography. Anyone got any good leads re ACE?

[jgrahamc]

Alan Turing's Automatic Computing Engine by Jack Copeland http://www.amazon.com/Alan-Turings-Automatic-Computing-Engin...