This is a massive "multi author" book Where the principal surviving persons involved in the Bletchley Park adventure come to word. Many details of the Cryptographic / deciphering jobs appear here for the first time. Jack Copeland does not hide his displeasure did the Fowler and his Colossi are very Often by-passed in the historical computer literature, where the ENIAC Usually is cited as the first computer. The long (and unnecessary) inforced UK secrecy did much harm to the pioneers, and robbed them of an appraisal They Should Have Received. I reaf many books on Bletchley Park, and this is one to recommend Certainly.
