
Operation Underworld: How the Mafia and U.S. Government Teamed Up to Win World War II
4.5 stars from 1,143 reviews. Top 89% of Nonfiction books we track.
Last checked: Feb 18, 2026
While not the biggest discount we've seen for this book, it's still a great deal and we recommend grabbing it before price returns to its normal range.
Price range: $1.99 – $23.80
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Fans of these authors will like this...
- Erik Larson
- Timothy Egan
- James Risen
Fans of these books will like this...
- The Devil in the White City
- Killers of the Flower Moon
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Perfect for you if...
- You enjoy WWII history that goes beyond the textbook and reveals the messy, compromised choices leaders actually made.
- You're drawn to stories about unlikely alliances and the criminals who became unlikely assets to the state.
- You like narrative nonfiction that reads like a thriller, with real stakes and fascinating historical figures.
Maybe not for you if...
- You prefer straightforward military history without the moral ambiguity of working with organised crime.
- You're looking for a book that celebrates American institutions rather than exposing their pragmatic deals with criminals.
- You want a quick read: this is detailed, footnoted history that demands engagement.
About this book
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Price History
Kindle price over time. Green zones = periods when the book was free.
Currently on sale at $13.99 — 41% off peak. Price has dropped 18 times over the last 4 years. Goes on sale roughly every 81 days. Typically stays discounted for 9 days.
Sales Rank
Amazon sales rank: lower number = better selling book. #1 is the bestseller.
Currently around #14K in the Kindle store — a steady mid-list seller. Climbing the charts — 29% improvement recently.
Rating & Reviews
Purple line = star rating over time. Blue area = total review count growth.
Currently 4.5★ from 1,143 reviews
Gaining approximately 30 new reviews per month. Steady word of mouth growth. Rating has climbed from 4.3 to 4.5. Recent readers are rating it higher.
Sale Prediction
Actual Predicted
This book is currently discounted at $13.99. It typically returns to around $23.80.
Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.
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