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The Code Book: The Secret History of Codes and Code-Breaking
by

Simon Singh

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Stephen Jakemer is 95% done

— 4 hours, 57 min ago Add a comment

The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography

Phoebe is starting

I’m only a couple of pages into chapter one and already I’m bemused. There’s a guy who shaved his head, had message written on it, grew his hair out, went to meet the recipient, and finally shaved his head to deliver the message. Jokes.

— 9 hours, 49 min ago Add a comment

The Code Book: The Evolution Of Secrecy From Mary, Queen Of Scots To Quantum Cryptography

Melissa is on page 168 of 432

— Apr 23, 2026 06:58AM Add a comment

Phil Squarcetta is on page 23 of 402

— Apr 21, 2026 05:50PM Add a comment

Aubrey (janethebookworm) is on page 395 of 432

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Xareni Galindo is on page 152 of 402

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keski is 65% done

— Apr 19, 2026 05:20PM Add a comment

Aubrey (janethebookworm) is on page 350 of 432

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Marco Nie is 71% done

— Apr 19, 2026 11:26AM Add a comment

Sabrina is 79% done

— Apr 18, 2026 08:27AM Add a comment

Sabrina is 76% done

— Apr 17, 2026 10:37AM Add a comment

Tray Sebastian is on page 30 of 432

— Apr 16, 2026 09:34PM Add a comment

abby.221b is starting

— Apr 16, 2026 03:18PM Add a comment

Sabrina is 65% done

— Apr 16, 2026 07:39AM Add a comment

Sabrina is 51% done

— Apr 14, 2026 11:18AM Add a comment

Xareni Galindo is on page 120 of 402

— Apr 13, 2026 10:54PM Add a comment

Sabrina is 44% done

— Apr 13, 2026 09:18AM Add a comment

Aarti Sehdev is on page 272 of 432

— Apr 12, 2026 03:19PM Add a comment

Marco Nie is 66% done

— Apr 12, 2026 11:04AM Add a comment

Per Wramdemark is 60% done

— Apr 12, 2026 12:10AM Add a comment

Liad Shemer is on page 30 of 432

— Apr 11, 2026 12:35PM Add a comment

Sabrina is 28% done

— Apr 11, 2026 06:33AM Add a comment

Xareni Galindo is on page 117 of 402

— Apr 10, 2026 01:50PM Add a comment

Sabrina is 17% done

— Apr 09, 2026 08:08PM Add a comment

Alina is on page 44 of 402

— Apr 09, 2026 01:22AM Add a comment

Alina is on page 33 of 402

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Martine Mulder is on page 52 of 432

— Apr 07, 2026 09:11AM Add a comment

Myname is on page 305 of 360

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Sabrina is 11% done

— Apr 05, 2026 03:17PM Add a comment

Sabrina is 6% done

— Apr 05, 2026 12:54PM Add a comment

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