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89 ratings | 3 reviews | avg rating:4.70

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Robert Cummer

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Average rating: 4.71 · 14 ratings · 11 reviews · 7 distinct works • Similar authors

	Dark Recipe: A Knox Ramsey Thriller (Knox Ramsey Thrillers Book 1) 4.67 avg rating — 12 ratings — 3 editions	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	Work the Problem: How I Became the Ringmaster of My Three-Ring Circus it was amazing 5.00 avg rating — 1 rating	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	SHOES INSIDE: A Jackson Dahl Mystery (Jackson Dahl, PI Mysteries Book 1) it was amazing 5.00 avg rating — 1 rating	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	Instrumentation & Signals: Field Troubleshooting (Boots on the Ground Book 1) 0.00 avg rating — 0 ratings	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	Instrumentation & Signals: Field Troubleshooting 0.00 avg rating — 0 ratings	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	Work The Problem: How I Became the Ringmaster of My Three-Ring Circus 0.00 avg rating — 0 ratings	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	Dark Recipe by Robert Cummer (Goodreads Author), Allisa Megan (Cover Art) 0.00 avg rating — 0 ratings	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	Terms & Conditions: A Knox Ramsey Thriller (Knox Ramsey Thrillers Book 2) by Robert Cummer (Goodreads Author), Alissa Megan (Illustrator) 0.00 avg rating — 0 ratings — 3 editions	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars

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Hi everyone,

I’m excited to share that the Kindle edition of my debut thriller, Dark Recipe, is currently on sale for just $0.99!

If you enjoy techno-thrillers, stories rooted in real science, or are a fan of Crichton and Clancy, this is the perfect time to pick it up.

About the book: The system that feeds the world has learned to murder.

Industrial engineer Knox Ramsey designed FarmLytics to grow foo Read more of this blog post »

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Published on December 29, 2025 10:57 • Tags: kindle, kindle-unlimited, knox-ramsey, sale, techno-thriller, thriller

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Robert is Currently Reading

Robert Cummer is currently reading

The Killer Across the Table

by John E. Douglas

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Mar 15, 2026 08:21PM

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Rainbow Six (John Clark, #2; Jack Ryan Universe, #10)

by Tom Clancy

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Dec 28, 2025 07:09AM

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Titan: The Life of John D. Rockefeller, Sr.

by Ron Chernow

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Dec 28, 2025 06:33AM

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Robert Cummer rated a book it was amazing The Anatomy of Motive: The FBI's Legendary Mindhunter Explores the Key to Understanding and Catching Violent Criminals by John E. Douglas	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Jul 29, 2026 11:21AM · 1 like · like
Robert Cummer rated a book it was amazing The Fourth Option by Jack Carr (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Jul 29, 2026 11:20AM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Fourth Option by Jack Carr. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Fourth Option by Jack Carr <iframe sandbox id="wrongBookKindlePreviewScreen">
Robert Cummer rated a book it was amazing The Great Bridge: The Epic Story of the Building of the Brooklyn Bridge by David McCullough	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Jul 29, 2026 11:20AM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Great Bridge by David McCullough. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Great Bridge by David McCullough <iframe sandbox id="wrongBookKindlePreviewScreen">
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Robert Cummer is currently reading The Fourth Option by Jack Carr (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
May 14, 2026 06:32PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Fourth Option by Jack Carr. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Fourth Option by Jack Carr <iframe sandbox id="wrongBookKindlePreviewScreen">
Robert Cummer rated a book it was amazing Antihero (Orphan X #11) by Gregg Hurwitz (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
May 14, 2026 06:31PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of Antihero by Gregg Hurwitz. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — Antihero by Gregg Hurwitz <iframe sandbox id="wrongBookKindlePreviewScreen">
Robert Cummer rated a book it was amazing Call for the Dead (George Smiley, #1) by John le Carré	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
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May 14, 2026 06:29PM · like · see status · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of Antihero by Gregg Hurwitz. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — Antihero by Gregg Hurwitz <iframe sandbox id="wrongBookKindlePreviewScreen">
Robert Cummer is currently reading Call for the Dead (George Smiley, #1) by John le Carré	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
May 10, 2026 10:12AM · like
Robert Cummer is now following John le Carré Author of The Spy Who Came In from the Cold (George Smile...
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Robert’s Year In Books

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Robert Cummer

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