Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister: Audiobook
According to The Books Insider's catalog data, the Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister audiobook runs 8.5 hours unabridged, narrated by Jonathan Caplan (about 5.7 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 8.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 17 days |
| 1 hour / day | 9 days |
| 2 hours / day | 5 days |
| 1 hour / day at 1.5× | 6 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 8.5 hours, it runs longer than 75% of the 10,901 Medicine & Naturopathy audiobooks in our catalog.
About as long, on the Medicine & Naturopathy shelf
1,266 Medicine & Naturopathy audiobooks in our catalog run within 10% of this length. The most popular on the store:
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
Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister is an audiobook by Jonathan Caplan: a 8.5-hour unabridged recording, read by Jonathan Caplan, released June 11, 2026, on the Medicine & Naturopathy and Social Science shelves.
The listen at a glance
- Length
- 8.5 hrs
- Narrated by
- Jonathan Caplan
- Released
- June 11, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Medicine & Naturopathy, Social Science
- ISBN
- 9781804961964
How to listen to Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister free
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Start listening freeQuestions listeners ask
How long is the Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister audiobook?
Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister runs 8.5 hours unabridged. At 1.5× speed that drops to roughly 5.7 hours.
Is the Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister?
Not For Disclosure: The Truth about UFOs, the World's Best Kept Secret - The Sunday Times Bestseller from the UK's Leading Barrister is narrated by Jonathan Caplan.