Picked by Frontlines fans

Here are 16 books that Frontlines fans have personally recommended once you finish the Frontlines series. Book DNA is a community of authors and super-readers sharing their favorite books with the world.

Book cover of Dark Rivers of the Heart

Ryan Jones Author Of Final Security

From my list on novels to make you a better writer.

Why am I passionate about this?

I became an author because I loved books and wanted to craft my own. Here are five books I consumed first as a reader and then as a writer, methodically noting what made these books brilliant in style, depth, and plot. If you enjoy thrillers or science fiction and are looking for books to hone your craft as a writer, here are my choices.

Ryan's book list on novels to make you a better writer

Ryan Jones Why Ryan loves this book

When I first began writing, the most common critique I got was, “You haven’t found your voice yet.” My editor said my style reminded her of Dean Koontz and gave me this book.

I was hooked from the first rain-soaked scene, where protagonist Spencer Grant checks on a missing friend and stumbles into a rogue government hit squad. Fortunately, Spencer Grant has a robust skill set of his own, along with a very dark secret in his past, his personal “dark river of the heart.”

The book goes a bit wild near the end, but by then, the lap bar is firmly down, and there is no getting off the ride. When I finished it, I declared, “I want to write just like that!”

By Dean Koontz ,

Why should I read it?

1 author picked Dark Rivers of the Heart as one of their favorite books, and they share why you should read it.

What is this book about?

Do you dare step through the red door?

From bestselling phenomenon Dean Koontz, this is a gripping, heart-pounding thriller perfect for fans of THE EYES OF DARKNESS and Stephen King.

Spencer Grant had no idea what drew him to the bar with the red door.
He thought he would just sit down, have a beer or two, talk to a stranger. He couldn't know that it would lead to a narrow escape from a bungalow targeted by a SWAT team. Or that it would leave him a wanted man.

But now Spencer is on the run from mysterious and ruthless…


Book cover of Fields of Fire

Anthony Riches Author Of Wounds of Honour

From my list on insight as to why men go to war.

Why am I passionate about this?

I’m pretty well qualified to provide you with a list of five great books about men at war because, frankly, I’ve spent half my life reading them and the other half trying to write them (you be the judge!). My degree in Military Studies was focused on the question of what makes men endure the lunacy of war (whether they be ‘goodies’ or ‘baddies’), and it was in fiction that I found some of the clearest answers–clue: it’s often less about country and duty and more about the love of the men alongside the soldier. In learning how to write, I also learned how to recognize great–enjoy!

Anthony's book list on insight as to why men go to war

Anthony Riches Why Anthony loves this book

I came across this book while researching why the US Army (and Marines) struggled so badly in the Vietnam War. As with all the books I’m recommending here, it spoke to me of how men go to war for their duty but stay at war for their brothers.

It speaks volumes of the frustrations and contradictions of a war in which an American generation skewed to the poor and racially discriminated against was sent to fight a highly motivated army of liberation and paid the price for their obedience. And told me more about what really happened in the valleys of that benighted country than any history book could.

I read it cover to cover and then read it again, eagerly consuming its truth at a time when the scars were so fresh that the truth was barely starting to emerge, and I commend it to you both as a…

By James H Webb ,

Why should I read it?

3 authors picked Fields of Fire as one of their favorite books, and they share why you should read it.

What is this book about?

Hailed as the most important novel to emerge from the Vietnam War when first published in 1978, this book launched a spectacular writing career for James Webb that now includes four bestselling novels. A much-decorated former Marine who fought and was wounded in Vietnam, Webb tells the story of a platoon of tough, young Marines enduring the tropical hell of Southeast Asian jungles while facing an invisible enemy--in a war no one understands. Filled with the sounds and smells of combat, it is nevertheless a book about people, an amazing variety of closely observed characters caught up in circumstances beyond…


Book cover of Junkyard Cats

Matthew O. Duncan Author Of The Warrior's Stone

From my list on old-school sci-fi from 21st century authors.

Why am I passionate about this?

I grew up a fan of all things sci-fi, Star Wars, Star Trek, Battlestar Galactica, and so on. But the older I got, the pickier I got, wanting more depth in character, creative stories and fun, but believable action. I read classic sci-fi like iRobot, Starship Troopers, and Enders Game, to name a few. I did find some contemporary authors I liked like Marco Kloos, Detmare Wehr, and Rebecca Branch, but they were needles in a haystack. So, instead of complaining that there were not enough good books out there, I started writing my own. A decade later I have 8 published titles and more on the way.  

Matthew's book list on old-school sci-fi from 21st century authors

Matthew O. Duncan Why Matthew loves this book

This is a good book, not great, but good. But I do recommend it to anyone who is interested in writing sci-fi. I love old-school sci-fi with the exception that it doesn’t always portray women in the best ways. Sci-fi has done better than most genres in making room for strong female characters, but not strong women writers. So when a talented writer like Faith Hunter writes a book with a female character who kicks ass and holds her own amongst the male heroes and villains, we should take note. It’s one thing to have a strong female lead written by a man (I try to make my female characters equals in my books), but if you want to study how to write believable strong female leads, then you should seek out writers like Faith Hunter.  

By Faith Hunter ,

Why should I read it?

2 authors picked Junkyard Cats as one of their favorite books, and they share why you should read it.

What is this book about?

From the author of the best-selling Jane Yellowrock and Soulwood series comes a tough new heroine who is far more than she seems. Junkyard Cats is the first in a new novella series.

After the Final War, after the appearance of the Bug aliens and their enforced peace, Shining Smith is still alive, still doing business from the old scrapyard bequeathed to her by her father. But Shining is now something more than human. And the scrapyard is no longer just a scrapyard, but a place full of secrets that she has guarded for years.

This life she has built,…


Book cover of The Synchronicity War Part 1

Matthew O. Duncan Author Of The Warrior's Stone

From my list on old-school sci-fi from 21st century authors.

Why am I passionate about this?

I grew up a fan of all things sci-fi, Star Wars, Star Trek, Battlestar Galactica, and so on. But the older I got, the pickier I got, wanting more depth in character, creative stories and fun, but believable action. I read classic sci-fi like iRobot, Starship Troopers, and Enders Game, to name a few. I did find some contemporary authors I liked like Marco Kloos, Detmare Wehr, and Rebecca Branch, but they were needles in a haystack. So, instead of complaining that there were not enough good books out there, I started writing my own. A decade later I have 8 published titles and more on the way.  

Matthew's book list on old-school sci-fi from 21st century authors

Matthew O. Duncan Why Matthew loves this book

This book is a little heavy on the tech and military strategy. A lot of authors lose their audience when they over-describe the nuts and bolts of their sci-fi universe or develop a tactical situation that is too complex for the reader to follow without a map and star chart. But Mr. Wehr keeps a nice balance between the details of the ships and AIs with the characters and their personal interactions. There is just enough of a personal perspective to keep the sci-fi from becoming dry. The story was inventive and became more interesting as it progressed.  

By Dietmar Arthur Wehr ,

Why should I read it?

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

What is this book about?

This four part series is now available on Amazon both individually and as an omnibus edition, which is available in Kindle Unlimited. Be aware that Part 1 has a cliffhanger ending. After almost a century of peaceful exploration and colonization of space, the United Earth Space Force stumbles across a shockingly xenophobic alien race that has more and better armed ships and refuses all attempts at contact. As the outgunned Space Force is driven back in battle after battle in what appears to be a war of extermination, one officer experiences precognitive visions that help him blunt the enemy onslaught…


Book cover of Hey Alexa: A Contemporary Romance Set During the Pandemic

Matthew O. Duncan Author Of The Warrior's Stone

From my list on old-school sci-fi from 21st century authors.

Why am I passionate about this?

I grew up a fan of all things sci-fi, Star Wars, Star Trek, Battlestar Galactica, and so on. But the older I got, the pickier I got, wanting more depth in character, creative stories and fun, but believable action. I read classic sci-fi like iRobot, Starship Troopers, and Enders Game, to name a few. I did find some contemporary authors I liked like Marco Kloos, Detmare Wehr, and Rebecca Branch, but they were needles in a haystack. So, instead of complaining that there were not enough good books out there, I started writing my own. A decade later I have 8 published titles and more on the way.  

Matthew's book list on old-school sci-fi from 21st century authors

Matthew O. Duncan Why Matthew loves this book

I was once told; the best authors are the ones who read more than they write. To that end I don’t always stick with my favorite genres. This book was recommended to me by a friend as a sci-fi that I typically would not read because it’s also a romance book. Hey Alexa, is slightly in the future, when Amazon develops an evolved version of Alexa that exists in a beautiful female android. I don’t want to give any more away. What makes this book wonderful is the journey the two main characters take in discovering that love is as unique as each individual person and it can be found when we are open to it.  

By Rebecca Branch ,

Why should I read it?

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

What is this book about?

He's brilliant, accomplished, and alone. He's been handed a death sentence by his doctor, and his only friend is his clock/radio. Can the Echo Dot with Alexa's voice save him?Travel to New York, London, Paris, Rome, Florence, Berlin, and a villa in Tuscany, as the man who'd given up on life finds a hopeful future and a partner to love.


Book cover of Renegade Star

Matthew O. Duncan Author Of The Warrior's Stone

From my list on old-school sci-fi from 21st century authors.

Why am I passionate about this?

I grew up a fan of all things sci-fi, Star Wars, Star Trek, Battlestar Galactica, and so on. But the older I got, the pickier I got, wanting more depth in character, creative stories and fun, but believable action. I read classic sci-fi like iRobot, Starship Troopers, and Enders Game, to name a few. I did find some contemporary authors I liked like Marco Kloos, Detmare Wehr, and Rebecca Branch, but they were needles in a haystack. So, instead of complaining that there were not enough good books out there, I started writing my own. A decade later I have 8 published titles and more on the way.  

Matthew's book list on old-school sci-fi from 21st century authors

Matthew O. Duncan Why Matthew loves this book

This book is a little more Space Opera than Sci-fi as it focuses more on the adventure than the impossibility of the technology. It takes place thousands of years in the future when man kinds had spread out across the galaxy and forgotten about Earth, for the most part. The characters are not deep, and the story relies more on action than complexity, but it’s fun. It moves from one event to another, the main character is a bit of a rogue that you can’t help but like and his female counterpart is smarter, faster, and deadlier than he will every be, so it's good she is on his side. One of the reasons I like these books (10 book series with some spin-offs) is because it is very different from my style. If my books were Angus Steaks, these would be an Ice-cream Sunday.   

By J.N. Chaney ,

Why should I read it?

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

What is this book about?

They say the Earth is just a myth. Something to tell your children when you put them to sleep, the lost homeworld of humanity. Everyone knows it isn't real, though. It can't be.

But when Captain Jace Hughes encounters a nun with a mysterious piece of cargo and a bold secret, he soon discovers that everything he thought he knew about Earth is wrong. So very, very wrong.

Climb aboard The Renegade Star and assemble a crew, follow the clues, uncover the truth, and most importantly, try to stay alive.

Experience the beginning of a sprawling galactic tale in this…


Book cover of Enterprise Stardust

Oliver Strong Author Of The School of Hard Knocks

From my list on first contact science fiction.

Why am I passionate about this?

I like this topic/theme because I’ve always enjoyed alien contact (in the future) in all forms of entertainment, also it is what I first took to when I began writing and I find this subject comes to me most readily. I guess it’s always on my mind since I’ve written every day for the past 13 years, mostly sci-fi novels/novellas of a similar theme, all these books influence my writing, even the comedy.

Oliver's book list on first contact science fiction

Oliver Strong Why Oliver loves this book

So some of you are sitting there thinking “Perry who?” well imagine him as the West German (it was first published in 1961) alternative to our Flash Gordon.

In book number one, Rhodan and his crew take off and make the first moon landing, their mission is disrupted by a crashed spacecraft. This is where they meet the Arkons, a sort of tall, large-headed alien with silver eyes, or hair, or both… it’s been a long time so don’t hold me to any of the details!

So these aliens from a super-intelligent species (Rhodan later in the series uses a device similar to the one in Battlefield Earth to increase his intelligence and psionic powers above even that of the Arkons) assist Rohdan in ending the cold war on Earth and uniting the planet.

The series runs for 126 books, mostly novellas, it’s typical Flash Gordon when it’s action time,…

By Karl-Herbert Scheer , Walter Ernsting ,

Why should I read it?

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

What is this book about?

The fate of Earth depended on one man deep in space.


Book cover of Enemy Mine

Jasmine P. Antwoine Author Of The Spacer

From my list on understanding the “enemy”.

Why am I passionate about this?

I’m drawn to science fiction that forces characters to confront the limits of their own understanding, especially when faced with someone labeled as an enemy. These are the stories that taught me how fragile judgment can be, and how costly it is to mistake difference for threat. I return again and again to books where communication across cultures, species, or systems is difficult, incomplete, and often arrives too late. What fascinates me most is not conflict itself, but the moral effort required to truly see the other. These novels shaped how I think about empathy, memory, and responsibility, and they continue to influence the kinds of stories I write.

Jasmine's book list on understanding the “enemy”

Jasmine P. Antwoine Why Jasmine loves this book

This was my very first science-fiction read, when I was around ten or twelve years old, and it never left me.

I was deeply shaken by the bond that grew between two sworn enemies who initially wanted nothing more than to kill each other. I was afraid for them, stranded on a hostile, alien planet, and I cried not only when Jerry died, but also when Samis tried to imitate Willis, lifting his three fingers and staring at the human’s five, asking if more would grow.

What stayed with me most was the moment when the human went to the Drac world to bear witness for Jerry and Samis. Since then, I’ve carried one line like a personal mantra: “Go ahead! Go ahead and blow, you kizlode sonofabitch! You haven’t killed me yet!”

This book taught me, very early, that humanity can survive even where ideology insists it shouldn’t.

By Barry B. Longyear ,

Why should I read it?

2 authors picked Enemy Mine as one of their favorite books, and they share why you should read it.

What is this book about?

This version is the original award winning novella that inspired the 20th Century Fox motion picture ENEMY MINE starring Dennis Quaid and Lou Gossett, Jr. It is the story of a human combat pilot, incomplete in himself, taught to be a human by the sworn enemy with which he is stranded, an alien who leaves with the human its most important possession: its future. This version of "Enemy Mine" is the winner of the Hugo, Nebula, and Locus awards for best novella (1980). Other versions available are expansions of this version.


Book cover of The Hunt for Red October

Ryan Jones Author Of Final Security

From my list on novels to make you a better writer.

Why am I passionate about this?

I became an author because I loved books and wanted to craft my own. Here are five books I consumed first as a reader and then as a writer, methodically noting what made these books brilliant in style, depth, and plot. If you enjoy thrillers or science fiction and are looking for books to hone your craft as a writer, here are my choices.

Ryan's book list on novels to make you a better writer

Ryan Jones Why Ryan loves this book

This book is the book that made me decide to become an author. I was always a voracious reader and crazy about all things technological—space exploration, airplanes, naval warfare, you name it. In my mind, there was no way anyone would want to read a book about my interests—until Tom Clancy showed it absolutely could be done and singlehandedly created a new genre of fiction with one book.

His research was so accurate that he was accused of spilling classified information about our submarine capabilities and tactics. But no, he was just an insurance agent from Owings, Maryland, who touched a 220-volt wire in my soul that made me decide, “Someday I’m going to do that, too!”

By Tom Clancy ,

Why should I read it?

9 authors picked The Hunt for Red October as one of their favorite books, and they share why you should read it.

What is this book about?

Also Available as an Audio Edition from Audible

Tom Clancy's rich imagination and his remarkable grasp of the capabilities of advanced technology give this novel an amazing ring of authenticity. It is a thriller with a new twist, a "military procedural" with an ingenious, tightly woven plot that revolves around the defection of a Soviet nuclear submarine--the USSR's newest and most valuable ship, with its most trusted and skilled officer at the helm.

A deadly serious game of hide-and-seek is on. The entire Soviet Atlantic Fleet is ordered to hunt down the submarine and destroy her at all costs. The…


Book cover of Master and Commander

Anthony Riches Author Of Wounds of Honour

From my list on insight as to why men go to war.

Why am I passionate about this?

I’m pretty well qualified to provide you with a list of five great books about men at war because, frankly, I’ve spent half my life reading them and the other half trying to write them (you be the judge!). My degree in Military Studies was focused on the question of what makes men endure the lunacy of war (whether they be ‘goodies’ or ‘baddies’), and it was in fiction that I found some of the clearest answers–clue: it’s often less about country and duty and more about the love of the men alongside the soldier. In learning how to write, I also learned how to recognize great–enjoy!

Anthony's book list on insight as to why men go to war

Anthony Riches Why Anthony loves this book

O’Brien performed some sort of alchemy in turning a previously dry and underpopulated section of the historical fiction genre into literary gold, at once gripping and supremely well-written. One follows the adventures of a Royal Navy Commander and his Irish doctor friend–a man with a secret life–through the war at sea in the Napoleonic era, and I found the balance between naval exploits–Jack Aubrey being a swashbuckler of renown–and period history made for fascinating counter-points.

Over and above that, I loved the way O’Brien built an ensemble cast and proceeded to draw the reader into their lives, making the death of any one of them a personal loss. I know that I benefitted from learning this writing trick and used it myself in my Empire series, and I know at least one other Roman author who did much the same. Wonderful stories that kept me coming back, and this is…

By Patrick O'Brian ,

Why should I read it?

11 authors picked Master and Commander as one of their favorite books, and they share why you should read it.

What is this book about?

This, the first in the splendid series of Jack Aubrey novels, establishes the friendship between Captain Aubrey, R.N., and Stephen Maturin, ship's surgeon and intelligence agent, against a thrilling backdrop of the Napoleonic wars. Details of a life aboard a man-of-war in Nelson's navy are faultlessly rendered: the conversational idiom of the officers in the ward room and the men on the lower deck, the food, the floggings, the mysteries of the wind and the rigging, and the roar of broadsides as the great ships close in battle.