86 ratings | 3 reviews | avg rating:4.69

more photos (1)

Robert’s Year In Books

Robert’s 2025 Year in Books

Take a look at Robert’s Year in Books, including some fun facts about their reading.

Go to Robert’s 2025 Year in Books

Robert Cummer’s Followers (3)

Robert’s Bookshelves

to-read (13)
currently-reading (11)
read (117)
did-not-finish (0)

Robert’s Friends (20)

Mohammed Hamid

1 book | 22 friends

Barbara Rheinhardt

3 books | 91 friends

Jamie Brow-Brandmair

1 book | 29 friends

Dave Taylor

1 book | 50 friends

Terry Parrish

2 books | 6 friends

Amy Gordon-Mitchell

22 books | 34 friends

Mary Glerum

0 books | 55 friends

Annette Monday

6 books | 24 friends

More friends…

Robert Cummer

Goodreads Author

Member Since

December 2013

edit data

Learn more
Ask the Author

To ask Robert Cummer questions, please sign up.

Combine Editions
Robert Cummer’s books

Average rating: 4.69 · 13 ratings · 11 reviews · 7 distinct works • Similar authors

	Dark Recipe: A Knox Ramsey Thriller (Knox Ramsey Thrillers Book 1) 4.64 avg rating — 11 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

More books by Robert Cummer…

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 »

Like • 0 comments • flag

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

View all 3 posts »

Robert is Currently Reading

Robert Cummer is currently reading

The Fourth Option

by Jack Carr (Goodreads Author)

bookshelves: currently-reading

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

Robert Cummer is currently reading

The Killer Across the Table

by John E. Douglas

bookshelves: currently-reading

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

Mar 15, 2026 08:21PM

Robert Cummer is currently reading

The Great Bridge: The Epic Story of the Building of the Brooklyn Bridge

by David McCullough

bookshelves: currently-reading

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

Jan 26, 2026 05:00PM

rss
Robert’s Recent Updates

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
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
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
May 14, 2026 06:31PM · like
Robert Cummer is finished with Antihero Antihero (Orphan X #11) by Gregg Hurwitz (Goodreads Author) progress:	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 06:29PM · like · see status
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...
May 10, 2026 10:12AM · like
Robert Cummer rated a book really liked it The Secret of Secrets (Robert Langdon, #6) by Dan Brown (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
Mar 24, 2026 02:10PM · like
Robert Cummer rated a book really liked it Red Rabbit (Jack Ryan, #2) by Tom Clancy	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
Mar 24, 2026 02:10PM · like
Robert Cummer finished reading Red Rabbit (Jack Ryan, #2) by Tom Clancy	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
Mar 24, 2026 02:09PM · like
Robert Cummer rated a book it was amazing The Crossroads (Joe Pickett, #26) by C.J. Box	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
Mar 24, 2026 02:00PM · like