1. A Brief History of Cryptography from Caesar to Bletchley Park; 2. How It Began: Bletchley Park Goes to War; 3. The German Tunny Machine; 4. Colossus, Codebreaking, and the Digital Age; 5. Machine Against Machine; 6. D-Day at Bletchley Park; 7. Intercept!; 8. Colossus; 9. Colossus and the Rise of the Modern Computer; 10. The PC-User's Guide to Colossus; 11. Of Men and Machines; 12. The Colossus Rebuild; 13. Mr Newman's Section; 14. Max Newman-Mathematician, Codebreaker and Computer Pioneer; 15. Living with Fish: Breaking Tunny in the Newmanry and the Testery; 16. From Hut 8 to the Newmanry; 17. Codebreaking and Colossus; 18. Major Tester's Section; 19. Setter and Breaker; 20. An ATS Girl in the Testery; 21. The Testery and the Breaking of Fish; 22. Dollis Hill at War; 23. The British Tunny Machine; 24. How Colossus was Built and Operated-One of Its Engineers Reveals Its Secrets; 25. Bletchley Park's Sturgeon-The Fish That Laid No Eggs; 26. Geheimschreiber Traffic and Swedish Wartime Intelligence; A1 Timeline: The Breaking of Tunny; A2 The Teleprinter Alphabet; A3 The Tunny Addition Square; A4 My Work at Bletchley Park; A5 The Tiltman Break; A6 Turingery; A7 Dc-Method; A8 Newman's Theorem; A9 Rectangling; A10 The Motor Wheels and Limitations; A11 Motorless Tunny; A12 Origin of the Fish Cypher Machines
Jack Copeland is a Reader in Philosophy and Director of the Turing Project at the University of Canterbury in New Zealand. A contributor to Scientific American, his books include Turing's Machines, Artificial Intelligence, and The Essential Turing.
An engaging book that will be essential reading for historians of twentieth-century technology and warfare. Nature formidably detailed Guardian compelling compilation New Scientist