The Books Insiderindependent audiobook data
Mysterious Messages: A History of Codes and Ciphers by Gary Blackwood

Mysterious Messages: A History of Codes and Ciphers: Audiobook

According to The Books Insider's catalog data, the Mysterious Messages: A History of Codes and Ciphers audiobook runs 3.1 hours unabridged, narrated by George Guidall (about 2.1 hours at 1.5× playback speed).

3.1listening hrs
Non-fiction (Kids)store shelf
2014released
Free for new listeners

The instrument When will you finish it?

Based on 3.1 hours of listening.

Days to finish Mysterious Messages: A History of Codes and Ciphers at common listening paces
Your paceYou'll finish in
30 min / day7 days
1 hour / day4 days
2 hours / day2 days
1 hour / day at 1.5×3 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 3.1 hours, it runs longer than 58% of the 14,091 Non-fiction (Kids) audiobooks in our catalog.

Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.

About this listen

Mysterious Messages: A History of Codes and Ciphers is an audiobook by Gary Blackwood: a 3.1-hour unabridged recording, read by George Guidall, released June 13, 2014, on the Non-fiction (Kids) shelf.

The listen at a glance

Length
3.1 hrs
Narrated by
George Guidall
Released
June 13, 2014
Format
Unabridged audiobook
Language
English
Store shelves
Non-fiction (Kids)
ISBN
9781490639291

How to listen to Mysterious Messages: A History of Codes and Ciphers free

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Questions listeners ask

How long is the Mysterious Messages: A History of Codes and Ciphers audiobook?

Mysterious Messages: A History of Codes and Ciphers runs 3.1 hours unabridged. At 1.5× speed that drops to roughly 2.1 hours.

Is the Mysterious Messages: A History of Codes and Ciphers audiobook free?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates Mysterious Messages: A History of Codes and Ciphers?

Mysterious Messages: A History of Codes and Ciphers is narrated by George Guidall.