Available at Amazon.
Thamks!
Available at Amazon.
Was something of a self promoter, who exaggerates his own role and importance, overstates the British contribution and virtually ignores the very substantial Polish contribution and minimizes the important American contributions. His book "broke the ice" when he published contrary to his oath of secrecy and lead to a flood of other, uniformly better books. Outside of his very limited role as an intermediary between the linguists who prepared the clear copy for the users and the user community (politicians and military officers), he knows almost nothing about the technical details, history or contents of the product that he handled.
I would recommend almost any other book as a good introduction.