The Books Insiderindependent audiobook data
George Marshall: A Biography by Irwin Unger, Debi Unger

George Marshall: A Biography: Audiobook

According to The Books Insider's catalog data, the George Marshall: A Biography audiobook runs 15.7 hours unabridged, narrated by Johnny Heller (about 10.5 hours at 1.5× playback speed).

15.7listening hrs
Worldstore shelf
2014released
Free for new listeners

The instrument When will you finish it?

Based on 15.7 hours of listening.

Days to finish George Marshall: A Biography at common listening paces
Your paceYou'll finish in
30 min / day32 days
1 hour / day16 days
2 hours / day8 days
1 hour / day at 1.5×11 days

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

What our data says

  • At 15.7 hours, it runs longer than 85% of the 7,179 World 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

George Marshall: A Biography is an audiobook by Irwin Unger and Debi Unger: a 15.7-hour unabridged recording, read by Johnny Heller, released October 21, 2014, on the World shelf.

The listen at a glance

Length
15.7 hrs
Narrated by
Johnny Heller
Released
October 21, 2014
Format
Unabridged audiobook
Language
English
Store shelves
World
ISBN
9780062362131

How to listen to George Marshall: A Biography free

New members at audiobooks.com get three free audiobooks with the trial.

Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.

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Questions listeners ask

How long is the George Marshall: A Biography audiobook?

George Marshall: A Biography runs 15.7 hours unabridged. At 1.5× speed that drops to roughly 10.5 hours.

Is the George Marshall: A Biography audiobook free?

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

Who narrates George Marshall: A Biography?

George Marshall: A Biography is narrated by Johnny Heller.

Is George Marshall: A Biography worth listening to at 1.5× speed?

At 1.5× you'd finish in about 10.5 hours, saving 5.2 hours.