60 books like The Gray Man

By Mark Greaney,

Here are 60 books that The Gray Man fans have personally recommended if you like The Gray Man. Shepherd is a community of 10,000+ authors and super readers sharing their favorite books with the world.

Shepherd is reader supported. When you buy books, we may earn an affiliate commission.

Book cover of Killing Floor

Tina O’Hailey Author Of Dark Drink

From my list on unconventional, stubborn, loyal characters with explorer’s hearts.

Why am I passionate about this?

I chose my favorite books, and through careful psyche analysis, I see a theme in them: stubborn characters who persevere through miserable elements. I cave, hike, kayak, motorcycle, etc. A lot of it is not comfortable. It starts with having an explorer’s heart. It isn’t glamorous. It is 90% talking yourself into the fact that you can do something you at first don’t believe you can do. The similar-minded friends that one finds along the way are lifelong, and there’s a bond that forms from crazy people like this. That comes through in my writing – companionship against a backdrop of stubborn exploration in an indifferent environment.

Tina's book list on unconventional, stubborn, loyal characters with explorer’s hearts

Tina O’Hailey Why did Tina love this book?

Reacher is dedicated to his “family” 5000%. Nothing else matters. Nothing. He is an incredibly simple and driven character who cannot resonate with the world around him nor give a moment to care that he does not. He is. That is all. Family is his team and, in this case, one actual family member. All are on equal footing.

While most details from books fade from my memory, this book (read when it first came out and eons before the TV show) is etched into my memory completely. The characters, the places, the fights, the sights and smells. I fell for Reacher’s plight and his steadfast mission to prove his innocence. My favorite image is hobo Reacher sleeping wherever and thinking nothing strange in that.

By Lee Child,

Why should I read it?

12 authors picked Killing Floor as one of their favorite books, and they share why you should read it.

What is this book about?

Ex-military policeman Jack Reacher is a drifter. He's just passing through Margrave, Georgia, and in less than an hour, he's arrested for murder. Not much of a welcome. All Reacher knows is that he didn't kill anybody. At least not here. Not lately. But he doesn't stand a chance of convincing anyone. Not in Margrave, Georgia. Not a chance in hell.


Book cover of The Black Echo

Sam Baron Author Of The Murder Club

From my list on crime thriller series that aren’t afraid to explore darkness.

Why am I passionate about this?

Like my series protagonist, FBI Agent Susan Parker, I am neurodiverse and have dealt with traumatic family events. I have Asperger’s, dyslexia, ADD, and have battled depression and suicidal impulses in earlier years. As a child, I experienced many violent, traumatic events, including the traumatic death of my mother, abduction, and abuse. However, my personal story has a happy ending: I overcame all challenges to become a fully functional individual with a rich, fulfilling family life and a successful career. Not surprisingly, I became a crime thriller superfan. I gravitate toward books that don’t shy away from depicting darkness but find a way for the MC to return to the sunlight.

Sam's book list on crime thriller series that aren’t afraid to explore darkness

Sam Baron Why did Sam love this book?

My mother was a very troubled young woman. The age difference between us was only 17 years, which meant that by the time I was a teenager, she was still young. Her alcoholism, broken marriages, and difficult relationships with her own family, including my Irish grandmother who effectively raised me and her two husbands, first my biological father and then my step-father, all made for a very challenging emotional landscape for a sensitive only child.

This seminal debut novel in what is now considered one of the finest crime series of all time. It features the series detective Harry Bosch who had a similar, troubled relationship with his own mother. Her death haunts Harry and influences his entire life and career, as the death of my mother does mine.

By Michael Connelly,

Why should I read it?

12 authors picked The Black Echo as one of their favorite books, and they share why you should read it.

What is this book about?


An LAPD homicide detective must choose between justice and vengeance as he teams up with the FBI in this "thrilling" novel filled with mystery and adventure (New York Times Book Review).

For maverick LAPD homicide detective Harry Bosch, the body in the drainpipe at Mulholland Dam is more than another anonymous statistic. This one is personal . . . because the murdered man was a fellow Vietnam "tunnel rat" who had fought side by side with him in a hellish underground war. Now Bosch is about to relive the horror of Nam. From a dangerous maze of blind alleys…


Book cover of The Puzzle Palace: A Report On NSA, America's Most Secret Agency

Jim Popkin Author Of Code Name Blue Wren: The True Story of America's Most Dangerous Female Spy--And the Sister She Betrayed

From my list on nonfiction spy books to read in one day.

Why am I passionate about this?

I covered the FBI and CIA for years, first as a print reporter in Washington and then as the head of the NBC News investigative unit. So I have covered my fair share of spy scandals, and with my colleague Pete Williams helped NBC break the story of Robert Hanssen’s arrest. I was immediately drawn to the Ana Montes Cuba spy story when it broke and then learned that Montes had bought her condo from my close friend and college roommate, John. That meant I had spent hours inside Ana’s DC apartment, and that odd connection rooted me in her story in a deeper way.  

Jim's book list on nonfiction spy books to read in one day

Jim Popkin Why did Jim love this book?

In fairness, I could not read this 600-page-plus intelligence agency classic in one day. But I sure tried.

This book is a blockbuster, pulling back the curtain on the super-secretive National Security Agency, NSA, in a way no one has before or since. I remember the sensation this book made when it came out, and have had the honor of getting to know Jim Bamford a bit over the years.

By James Bamford,

Why should I read it?

2 authors picked The Puzzle Palace as one of their favorite books, and they share why you should read it.

What is this book about?

In this remarkable tour de force of investigative reporting, James Bamford exposes the inner workings of America's largest, most secretive, and arguably most intrusive intelligence agency. The NSA has long eluded public scrutiny, but The Puzzle Palace penetrates its vast network of power and unmasks the people who control it, often with shocking disregard for the law. With detailed information on the NSA's secret role in the Korean Airlines disaster, Iran-Contra, the first Gulf War, and other major world events of the 80s and 90s, this is a brilliant account of the use and abuse of technological espionage.


Book cover of Agents of Innocence

Keith Thomson Author Of Once a Spy

From my list on spy books that will make you paranoid.

Why am I passionate about this?

I played semi-professional baseball in France in 1986. If your baseball career has brought you to France, you should be rethinking your professional aspirations. No problem, I thought. I will write. I like to write. To my dismay, publishers were not fans of novels about French baseball players. The world of espionage I became acquainted with in Europe, however….

Keith's book list on spy books that will make you paranoid

Keith Thomson Why did Keith love this book?

Washington Post national security reporter Ignatius may not know the world of espionage better than anyone, but he writes about it better than anyone. Agents of Innocence is such a realistic and engaging depiction of the life of a CIA case officer that a copy of it is left in the room of each new arrival at Camp Peary, the CIA training facility. It’s about an idealistic young CIA officer posted to Beirut to penetrate the PLO, and, in the process, learns hard lessons, not least of which is that once human lives are at stake, idealism takes a back seat to pragmatism. Ultimately, it is a compelling story with terrific characters, and I would have rooted for them had they been accountants or fishmongers rather than spies

By David Ignatius,

Why should I read it?

1 author picked Agents of Innocence as one of their favorite books, and they share why you should read it.

What is this book about?

Agents of Innocence is the book that established David Ignatius's reputation as a master of the novel of contemporary espionage. Into the treacherous world of shifting alliances and arcane subterfuge comes idealistic CIA man Tom Rogers. Posted in Beirut to penetrate the PLO and recruit a high-level operative, he soon learns the heavy price of innocence in a time and place that has no use for it.


Book cover of The Quantum Spy: A Thriller

Keith Thomson Author Of Once a Spy

From my list on spy books that will make you paranoid.

Why am I passionate about this?

I played semi-professional baseball in France in 1986. If your baseball career has brought you to France, you should be rethinking your professional aspirations. No problem, I thought. I will write. I like to write. To my dismay, publishers were not fans of novels about French baseball players. The world of espionage I became acquainted with in Europe, however….

Keith's book list on spy books that will make you paranoid

Keith Thomson Why did Keith love this book?

Ignatius’s most recent novel is in many respects a mashup of books no. 1 and 2 on this list: terrific storytelling and the latest spy recent tech: You’ll conclude that it’s just a matter of time until “bad actors” (spy speak for “bad guys”) can hack your brain. At the same time, you’ll enjoy the story.

By David Ignatius,

Why should I read it?

1 author picked The Quantum Spy as one of their favorite books, and they share why you should read it.

What is this book about?

A hyper-fast quantum computer is the digital equivalent of a nuclear bomb; whoever possesses one will be able to shred any encryption and break any code in existence. The question is: who will build one first, the U.S. or China?

In this gripping thriller, U.S. quantum research labs are compromised by a suspected Chinese informant, inciting a mole hunt of history-altering proportions. CIA officer Harris Chang leads the charge, pursuing his target from Singapore to Mexico and beyond. Do the leaks expose real secrets, or are they false trails meant to deceive the Chinese? The answer forces Chang to question…


Book cover of CIA Improvised Sabotage Devices

Keith Thomson Author Of Once a Spy

From my list on spy books that will make you paranoid.

Why am I passionate about this?

I played semi-professional baseball in France in 1986. If your baseball career has brought you to France, you should be rethinking your professional aspirations. No problem, I thought. I will write. I like to write. To my dismay, publishers were not fans of novels about French baseball players. The world of espionage I became acquainted with in Europe, however….

Keith's book list on spy books that will make you paranoid

Keith Thomson Why did Keith love this book?

Exploding wine bottles, guns constructed out of pipes, bullets made of teeth, aspirin explosives: If these sound like props from a B spy movie, it's because, again, truth > fiction. In the early-1970s, the Central Intelligence Agency spent a great deal of effort developing myriad weapons for sabotage. The results were this seventy-two-page illustrated manual, published in 1977 and distributed to American operatives likely to find themselves in situations requiring such improvisation. The manual is also invaluable for writers.

By USA Government,

Why should I read it?

1 author picked CIA Improvised Sabotage Devices as one of their favorite books, and they share why you should read it.

What is this book about?

, Brand New Desert Publications Clean and Tight OS O


Book cover of The Bourne Identity

Frank Zafiro Author Of The Last Horseman

From my list on action with thrills that could really happen.

Why am I passionate about this?

I was a cop for twenty years. And while I always saw True Crime as a busman’s holiday, I loved crime fiction all along. Eventually my own writing took me there, as well. I love how crime fiction, much like good science fiction, explores the nature of human behavior in a way that isn’t as prevalent in other genres. As a result, I’ve read widely in the field, always gravitating toward the darker and grittier entries. The lone wolf protagonists who either live by a code or undergo a fascinating change within the book or series has also been my focus.

Frank's book list on action with thrills that could really happen

Frank Zafiro Why did Frank love this book?

Thanks to Hollywood adaptations and sometimes a greedy publisher, a great series can diminish as time passes. But that doesn’t change how cool the original was.

I love the setup of a man waking on a sailing vessel with no memory, only to discover his identity as super espionage agent. The mystery of the scenario and the intrigue as Bourne unravels his own personhood was so well done in this first book (and the first film was an excellent adaptation), and it is worth revisiting.

By Robert Ludlum,

Why should I read it?

13 authors picked The Bourne Identity as one of their favorite books, and they share why you should read it.

What is this book about?

Jason Bourne is back in the forthcoming major motion picture starring Matt Damon and Alicia Vikander. Go back to where it all began for Bourne in his first adventure - The Bourne Identity

He was dragged from the sea, his body riddled with bullets. There are a few clues: a frame of microfilm surgically implanted beneath the skin of his hip; evidence that plastic surgery has altered his face; strange things he says in his delirium, which could be code words. And a number on the film negative that leads to a bank account in Zurich, four million dollars, and…


Book cover of The Terminal List

Carl Michaelsen Author Of The Last of a Dying Breed

From my list on to bring on an airplane/vacation.

Why am I passionate about this?

If you’re at all like me, then finding time to sit down and read a book is incredibly challenging given how busy our everyday lives are. It seems like the only time I truly can dive into a book is on vacation. And so, all of the books I recommended I have either read on vacation or on an airplane. In my opinion, a good vacation book needs to be two things. It needs to be a quick read and it needs to be impossible to put down. When I sit down to write a book, I try to keep both of these in mind!

Carl's book list on to bring on an airplane/vacation

Carl Michaelsen Why did Carl love this book?

The ultimate thrill ride from start to finish, Jack Carr’s first novel following Navy Seal Commander James Reece is one to remember. I bought this book at the airport in Anaheim, California, and started reading while waiting for my flight. A few delays and a five-hour flight later I had finished the entire book. It is a fantastically written book, laced with complex characters, government, and corporate conspiracies, and reminds us all why you must always be wary of those closest to us.

By Jack Carr,

Why should I read it?

6 authors picked The Terminal List as one of their favorite books, and they share why you should read it.

What is this book about?

**SOON TO BE A TV SERIES STARRING CHRIS PRATT**

'With a particular line in authentic tradecraft, this fabulously unrelenting thrill-ride was a struggle to put down' Mark Dawson, bestselling author of The Cleaner

James Reece has nothing to live for and everything to kill for in the debut thriller from former Navy SEAL Jack Carr, perfect for fans of Lee Child and David Baldacci.

On deployment in Afghanistan, Lieutenant Commander James Reece's entire team is killed in a catastrophic ambush. But the deaths don't stop there, and Reece soon discovers that this was not an act of war by a…


Book cover of Act of Treason

Seth Sjostrom Author Of Patriot X

From my list on thrillers that kick terrorist butt.

Why am I passionate about this?

I have a fierce passion for justice. Studying political science in college, I keyed on moments in history where greed, power, and oppression marred human society. As a thriller writer myself (15 published titles and counting), I enjoy authors that understand the characters, settings, and combat sequences in their novels either through personal experience, training, or deep research. I work hard to ensure as wild as my characters’ adventures are, every detail is plausible. The books on this list are filled with raucous action and death-defying scenes while remaining possible. 

Seth's book list on thrillers that kick terrorist butt

Seth Sjostrom Why did Seth love this book?

When asked about my favorite author and influences, Vince Flynn is right at the top. 

Flynn and his character Mitch Rapp aren’t afraid to take on anyone in order to wreak justice, even if the trail leads them to the oval office itself. This is what I love about the book, series, and character, that urgent, calculated versus reckless pursuit of justice.

Act of Treason, like the rest of the Mitch Rapp series, is fast-paced, irreverent at times, and hard-hitting as CIA Agent Rapp faces down anyone, foreign or domestic, to complete his mission. I enjoy Flynn’s writing style and the emotional twists he makes Rapp and the readers endure. 

By Vince Flynn,

Why should I read it?

1 author picked Act of Treason as one of their favorite books, and they share why you should read it.

What is this book about?

THE NEW YORK TIMES NUMBER ONE BESTSELLER

Two weeks before the election - and presidential candidate Josh Alexander's motorcade is decimated by a terrorist bomb. Alexander survives the attack, although members of his entourage are not so lucky. It appears to be the work of al-Qaeda. But then CIA director Irene Kennedy is presented with classifed information so toxic that she considers destroying it altogether. Instead she summons Mitch Rapp, the one man reckless enough to follow the evidence to its explosive conclusion...

AMERICAN ASSASSIN, book one in the series, is soon to be a MAJOR MOTION PICTURE starring Dylan…


Book cover of The Last Patriot

Seth Sjostrom Author Of Patriot X

From my list on thrillers that kick terrorist butt.

Why am I passionate about this?

I have a fierce passion for justice. Studying political science in college, I keyed on moments in history where greed, power, and oppression marred human society. As a thriller writer myself (15 published titles and counting), I enjoy authors that understand the characters, settings, and combat sequences in their novels either through personal experience, training, or deep research. I work hard to ensure as wild as my characters’ adventures are, every detail is plausible. The books on this list are filled with raucous action and death-defying scenes while remaining possible. 

Seth's book list on thrillers that kick terrorist butt

Seth Sjostrom Why did Seth love this book?

When I select a thriller, I like to find someone who has developed a deep knowledge of the subject and settings either through experience or deep research. Brad Thor is an expert on terrorism and global politics.

His character, former Navy SEAL Scot Harvath, is brash and brutal as he operates to counter-terrorism in his role as a covert Homeland Security Officer. In The Last Patriot, he chases a militant Islamic cell that is protecting a lost revelation of the Prophet Mohammed that could change derail terror forever.

I enjoy reading Brad Thor books for the intensive research and logic he weaves into his stories. Reading The Last Patriot, and other titles in the series is like having a conversation over a pair of fingers of whiskey talking global politics with my friends.

By Brad Thor,

Why should I read it?

1 author picked The Last Patriot as one of their favorite books, and they share why you should read it.

What is this book about?

Brad Thor, master of suspense and #1 New York Times bestselling author is back with his highest-voltage thriller to date in which Navy SEAL turned covert Homeland Security operative Scot Harvath must race to locate an ancient secret that has the power to stop militant Islam dead in its tracks.

June 632 A.D.: Deep within the Uranah Valley of Mount Arafat in Mecca, the Prophet Mohammed shares with his closest companions a final and startling revelation. Within days, he is assassinated.

September 1789: U.S. Minister to France Thomas Jefferson, who is charged with forging a truce with the violent Muslim…


5 book lists we think you will like!

Interested in assassin, the CIA, and presidential biography?

10,000+ authors have recommended their favorite books and what they love about them. Browse their picks for the best books about assassin, the CIA, and presidential biography.

Assassin Explore 70 books about assassin
The CIA Explore 123 books about the CIA
Presidential Biography Explore 19 books about presidential biography