Here are 65 books that Inversions fans have personally recommended if you like Inversions. Book DNA is a community of 12,000+ authors and super readers sharing their favorite books with the world.

When you buy books, we may earn a commission that helps keep our lights on (or join the rebellion as a member).

Book cover of Star Surgeon

Jen Finelli Author Of Neodymium Exodus

From my list on sweeping space operas with metaphysical themes.

Why am I passionate about this?

From dancing on a crane in a meteor shower, to earning a history degree at the top program in my country; bathing under a waterfall to cradling the dying as a physician—I’ve always straddled the line between adventure and hunger for the truth beyond. Some books are the same way: they pull you in with fun and plot, and colors, and they leave you with bigger thoughts and questions about the Universe at large. All genres have this capacity for surprise and depth, but space opera’s best—here’s a list of reads with that special metaphysical power.

Jen's book list on sweeping space operas with metaphysical themes

Jen Finelli Why Jen loves this book

I’m a physician, so it’s probably not surprising that a book by a physician about an alien physician might hit my list of meaningful space operas.

What is surprising is Star Surgeon’s double-twist—the patients aren’t who we think they are, and the secret to getting Earth into the prestigious Galactic Confederation isn’t what we think it is—both of which actually had huge real-world thematic implications.

On face level, it’s a medical thriller: the protag’s the first alien to graduate from human medical school, and he’s got to prove himself by curing an epidemic on a remote planet without arousing the ire of his human teachers. (I felt like this in residency.) But on a metaphysical level, Star Surgeon is a quiet manifesto dissecting the origins of racism—and the very biology of sentience itself. 

By Alan E Nourse ,

Why should I read it?

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

What is this book about?

A Sector General Novel In the far future Humans are part of an intergalactic civilization populated with countless alien races. Humans are prized for their medical expertise and make up almost all of doctors in the galaxy. Dal Timgar is the first non-human to attempt to become a qualified physician recognized by the Hospital Earth. But, before he reaches his goal he and his companions find a plague planet that may change the course of history.


If you love Inversions...

Book cover of Captain James Heron First Into the Fray: Prequel to Harry Heron Into the Unknown of the Harry Heron Series

Captain James Heron First Into the Fray by Patrick G. Cox,

Captain Heron finds himself embroiled in a conflict that threatens to bring down the world order he is sworn to defend when a secretive Consortium seeks to undermine the World Treaty Organisation and the democracies it represents as he oversees the building and commissioning of a new starship.

When the…

Book cover of Carl Sagan's Cosmic Connection

Ian Ridpath Author Of Star Tales

From my list on that have inspired my writings on astronomy and space.

Why am I passionate about this?

I am an author, editor, lecturer, and sometime broadcaster on astronomy and space. My early interest in the possibilities of extraterrestrial life and interstellar communication led me to write my first books, Worlds Beyond (1975) and Messages from the Stars (1978). This interest also led me to investigate UFO sightings, but I soon realized that their explanation lies in human misperception and not ETs. My investigation and explanation of the famous Rendlesham Forest UFO case of December 1980, widely regarded as one of the top-ten cases worldwide and sometimes known as Britain's Roswell, can be found hereIn conjunction with the outstanding Dutch celestial cartographer Wil Tirion, I have produced two standard observing guides for amateur astronomers. 

Ian's book list on that have inspired my writings on astronomy and space

Ian Ridpath Why Ian loves this book

Carl Sagan was that most unusual of creatures: a top scientist who was also a lyrical writer. In an era when scientists were still wary of dealing with the press – an aversion that he helped overturn – his books were particularly influential in promoting the search for extraterrestrial life, both on the planets of our own Solar System (notably Mars) and on planets of other stars. In nearly 40 short, varied essays, The Cosmic Connection outlines our links with the cosmos around us, raises the possibility that we are not alone, and discusses what we might do if an extraterrestrial contact were to be received.

By Carl Sagan ,

Why should I read it?

1 author picked Carl Sagan's Cosmic Connection as one of their favorite books, and they share why you should read it.

What is this book about?

In 1973, Carl Sagan published The Cosmic Connection, a daring view of the universe, which rapidly became a classic work of popular science and inspired a generation of scientists and enthusiasts. This seminal work is reproduced here for a whole new generation to enjoy. In Sagan's typically lucid, lyrical style, he discusses many topics from astrophysics and solar system science, to colonization of other worlds, terraforming and the search for extraterrestrials. Sagan conveys his own excitement and wonder, and relates the revelations of astronomy to the most profound human problems and concerns: issues that are just as valid today as…


Book cover of The Hitchhiker's Guide to the Galaxy

Ray C Doyle Author Of Timebreak

From my list on sci-fi books that fly me far away into an adventurous future.

Why am I passionate about this?

Sci-fi has been part of my life since Sunday afternoons in front of the radio listening to Journey to the Moon and the original Quatermass serial. Then it was Doctor Who and Star Trek. Despite this, I have never written a serious sci-fi book until now, but I can boast of knowing all the characters in both the radio and TV sci-fi shows. I guess I can admit to being a Trekkie.

Ray's book list on sci-fi books that fly me far away into an adventurous future

Ray C Doyle Why Ray loves this book

Another pioneer writer and the writer who started the cyberpunk genre. I loved this book because it is different, and if you are a true sci-fi nut, this one is for you. 

I think Adams must have been on another planet when he wrote this. It is sci-fi comedy, and unlike many others who try and fail with comedy in this genre, this is a giant of a series. It is funny and serious with unforgettable characters. I love it. 

By Douglas Adams ,

Why should I read it?

45 authors picked The Hitchhiker's Guide to the Galaxy as one of their favorite books, and they share why you should read it.

What is this book about?

This box set contains all five parts of the' trilogy of five' so you can listen to the complete tales of Arthur Dent, Ford Prefect, Zaphod Bebblebrox and Marvin the Paranoid Android! Travel through space, time and parallel universes with the only guide you'll ever need, The Hitchhiker's Guide to the Galaxy.

Read by Stephen Fry, actor, director, author and popular audiobook reader, and Martin Freeman, who played Arthur Dent in film version of The Hitchhiker's Guide to the Galaxy. He is well known as Tim in The Office.

The set also includes a bonus DVD Life, the Universe and…


If you love Iain M. Banks...

Book cover of Captain James Heron First Into the Fray: Prequel to Harry Heron Into the Unknown of the Harry Heron Series

Captain James Heron First Into the Fray by Patrick G. Cox,

Captain Heron finds himself embroiled in a conflict that threatens to bring down the world order he is sworn to defend when a secretive Consortium seeks to undermine the World Treaty Organisation and the democracies it represents as he oversees the building and commissioning of a new starship.

When the…

Book cover of Schismatrix

Wil McCarthy Author Of Beggar's Sky

From my list on peaceful alien contact.

Why am I passionate about this?

I’ve been a science fiction writer since I was old enough to read, and I’ve spent probably way too much of my life reading and writing and researching and thinking about aliens. I’ve worked in the aerospace industry, launching rockets to the moon and Mars and Saturn, and five of the books I’ve published have touched on alien life in one way or another. I’ve worked as a contributing editor for WIRED magazine and the science and technology correspondent for the SyFy channel, and I hold patents in seven countries, including 31 issued U.S. patents.

Wil's book list on peaceful alien contact

Wil McCarthy Why Wil loves this book

Sterling burst onto the SF scene with a crash and clatter when I was in high school, and this book, while perhaps not his very best work, is certainly his most creative.

I loved the fact that the aliens were investors rather than conquerors and also the fact that human beings were diverging along so many different vectors that we were rapidly becoming alien to one another.

By Bruce Sterling ,

Why should I read it?

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

What is this book about?

THE FUTURE OF MANKIND CAN TAKE ONE OF TWO DIRECTIONS...

The Mechanists are ancient aristocrats, their lives prosthetically extended with advanced technology. The Shapers are genetically altered revolutionaries, their skills the result of psychotechnic training and artificial conditioning.

Both factions are fighting to control the Schismatrix of humankind.

The Shapers are losing the battle, but Abelard Lindsay--a failed and exiled Shaper diplomat--isn't giving up. Across the galaxy, Lindsay moves from world to world, building empires, struggling for his cause--but more often fighting for his life.

He is a rebel and a rogue, a pirate and a politician, a soldier and…


Book cover of The Simulacrum

Phil Bailey Author Of Kelvoo's Testimonial

From my list on first contact science fiction novels.

Why am I passionate about this?

Of all the intelligent species (both real and fictional), humans fascinate me the most. For me, it’s the creativity and diversity of humans that both divide and unite us. Our eternal struggle to understand one another and overcome our differences fascinates me. I love first-contact science fiction that lets us view the values and behavior of our own species through the lens of true outsiders. I find great value in these parables when they increase self-awareness of our identities and our effect on others.

Phil's book list on first contact science fiction novels

Phil Bailey Why Phil loves this book

Honestly, I could recommend any of Peter Cawdron’s first contact science fiction books–and there are many of them! Peter is one of the most prolific indie authors on Amazon, and I appreciate that most of his books are available on Kindle Unlimited.

The Simulacrum appealed to the side of me that craves stories with tension, drama, and a fast pace. At the same time, as a science-minded reader, I want the stories I read to be plausible. The author clearly did his research by producing a first-contact story that fits within the known laws of physics and interstellar travel.

As a bonus, this book includes an afterword with detailed explanations of the ideas, concepts, and hard science that went into the book–something I really appreciate.

By Peter Cawdron ,

Why should I read it?

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

What is this book about?

Someone is altering old astronomical images. In one small patch of the sky, the digital versions don't match the original prints and photographic plates taken by observatories from around the world over the past century.

Dawn McAllister is a PhD student tasked with figuring out why Przybylski’s Star is attracting unwanted attention from a malicious hacker... Her high-achieving brother, Ryan, is an astronaut on the backup crew for NASA's Ample mission to the asteroid Psyche in orbit between Mars and Jupiter... At the same time, NSA analyst Gabriel Rodrigez stumbles upon a collaboration between Russia and China to interfere with…


Book cover of Chariots of the Gods

Luke Eastwood Author Of Scotia: Lost Sister of Tutankhamun

From my list on mysteries of the ancient world.

Why am I passionate about this?

I am an amateur historian, druid, and author of 11 books so far. I have a great passion for ancient history, particularly Ireland, Greece, Persia, and Egypt. I have been a student of Druidry since the mid-1990s and I have also had a passion for history and mythology since I received a children’s version of The Twelve Labours of Hercules when I was around 7 years old.

Luke's book list on mysteries of the ancient world

Luke Eastwood Why Luke loves this book

I read this book a long time ago and went back to it again as it is so revolutionary and quite startling for its time (1968). His theories were often laughed at, but he has been hugely vindicated by later discoveries. I think he was a very brave man to write this book, addressing one of the greatest mysteries of all—how we became civilized.

He must have known he would be vilified for producing such a book, but he did it anyway and in doing so unleashed a torrent of unconventional archaeologists and explorers of the past. So much has changed since this book came out, but it is still a seminal work that, IMO, should be read by anyone interested in the ancient past and the evolution from simple farmers into advanced societies.

By Erich von Däniken ,

Why should I read it?

3 authors picked Chariots of the Gods as one of their favorite books, and they share why you should read it.

What is this book about?

THE SEVEN MILLION COPY BESTSELLER

The groundbreaking classic that introduced the theory that ancient Earth established contact with aliens.

Immediately recognized as a work of monumental importance, Chariots of the Gods endures as proof that Earth has been visited repeatedly by advanced aliens from other worlds. Here, Erich von Daniken examines ancient ruins, lost cities, spaceports, and a myriad of hard scientific facts that point to extraterrestrial intervention in human history. Most incredible of all, however, is von Daniken's theory that we are the descendants of these galactic pioneers-and he reveals the archeological discoveries that prove it...

The dramatic discoveries…


Book cover of American Cosmic: UFOs, Religion, Technology

Darren Campo Author Of Alex Detail's Revolution

From my list on young love confronting cosmic forces like UFOs and life after death.

Why am I passionate about this?

I love people who are totally lost because they are on the brink of their greatest discovery–their true nature. Even as a little boy I remember seeing that everyone has a purpose in life, but that is hidden to them. I have always felt that every step of the way, life seems to be a little off-track. But through authentic stories, I came to an understanding that right now, everyone is doing great things with their lives, even if they can’t see it.

Darren's book list on young love confronting cosmic forces like UFOs and life after death

Darren Campo Why Darren loves this book

This is the real-life account of a professor who gets caught up in “The Phenomena,” a term used to describe the appearance and interaction with extraterrestrial activity and encounters.

Diana Pasulka is a professor of religious studies who is researching the similarities between encounters with angels and demons, which are very similar in description to encounters with aliens and UFOs. Professor Pasulka is blindfolded and driven by a NASA scientist to a desert in New Mexico, where she is shown a secret “UFO crash site.” She doesn’t believe any of it. She says the ground is covered for miles by deteriorating aluminum cans that the government placed there over fifty years ago to obscure the UFO crash site and hide it. Later, her friend, Dr. Gary Nolan, a Stanford University scientist, verifies the objects from the crash site are not from this “universe.” 

I love this book because it is…

By D. W. Pasulka ,

Why should I read it?

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

What is this book about?

More than half of American adults and more than seventy-five percent of young Americans believe in intelligent extraterrestrial life. This level of belief rivals that of belief in God. American Cosmic examines the mechanisms at work behind the thriving belief system in extraterrestrial life, a system that is changing and even supplanting traditional religions.

Over the course of a six-year ethnographic study, D.W. Pasulka interviewed successful and influential scientists, professionals, and Silicon Valley entrepreneurs who believe in extraterrestrial intelligence, thereby disproving the common misconception that only fringe members of society believe in UFOs. She argues that widespread belief in aliens…


Book cover of UFO: The Inside Story of the US Government's Search for Alien Life Here-and Out There

Neil Nixon Author Of UFOs, Aliens and the Battle for the Truth: A Short History of UFOlogy

From my list on making you an expert on UFOs.

Why am I passionate about this?

I’ve been writing for publication since I was a student, crudely the writing has been a way of medicating the fact I’m incurably curious about a range of things and I’ve also suffered from an over-production of ideas my whole life. Wrestling this under control into writing and live speaking where the subjects must fit within a title, word limit, or running time for a talk has been helpful, beyond which the whole writing career has been a trade off between things I’ve chosen to do because they matter a lot to me, and the occasional accepting of an offer I thought too good to refuse.

Neil's book list on making you an expert on UFOs

Neil Nixon Why Neil loves this book

This is hefty, recent, authoritative, and well written (the author’s CV includes a Pulitzer Prize nomination).

Over a lengthy historic account, he spins the twin stories of the search by scientists for extraterrestrial life and the – usually – amateur search by ufologists for evidence to support their claims that aliens are already visiting us. Garrett Graff explores the contradictions.

He is clear and concise on the strength and weakness each side’s efforts, and insightful in those moments when both sides have briefly collaborated. For a beginner to the subject who wants the shortest route to becoming truly knowledgeable, this is the perfect primer.

By Garrett M. Graff ,

Why should I read it?

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

What is this book about?

From Garrett M. Graff, New York Times bestselling author of Raven Rock, The Only Plane in the Sky, and Pulitzer Prize finalist for history Watergate, comes the first comprehensive and eye-opening exploration of our government's decades-long quest to solve one of humanity's greatest mysteries: Are we alone in the universe?

For as long as we have looked to the skies, the question of whether life on Earth is the only life to exist has been at the core of the human experience, driving scientific debate and discovery, shaping spiritual belief, and prompting existential thought across borders and generations. And yet,…


Book cover of Alien Roadkill: Deal Breaker

John Klawitter Author Of Death Drop

From my list on living normal lives murder deception and love.

Why am I passionate about this?

Looking back, I was surprised at the things I'd done and the distance I'd traveled from my lower-middle-class upbringing in an industrial town. Destined for a life on the hot beds at the steel mill, I worked my way through college, found a job as a cub copywriter, learned documentary filmmaking, won an EMMY Award, moved to Hollywood, and started my 'sho biz' career. 

John's book list on living normal lives murder deception and love

John Klawitter Why John loves this book

What I love most about this story is the fresh new take on ‘the aliens among us.’ The author picks a ‘backwoods country boy’ to confront and eventually be chased by powerful creatures from outer space. Lucky for the country boy, he is given some superpowers to help him survive.

I liked how the story moved along with snappy enthusiasm (this is the first of six volumes).

By Steve Zuckerman ,

Why should I read it?

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

What is this book about?

The adventure begins when JB Tucker, a simple, backwoods country boy–born and raised in the Carolina swamps–accidentally becomes infected with tiny, autonomous alien tech.
The hundreds of millions of sub-molecular robots coursing through his bloodstream have evolved far beyond their original design and capabilities. The freak pairing of the off-world medical protocols and JB’s unique human body chemistry result in immediate and dramatic consequences.
Now, relentlessly hunted by off-worlders intent on both the retrieval of their stolen technology and his utter destruction, JB finds himself thrust into the center of an intergalactic conflict that he can neither comprehend, nor escape.


Book cover of The Sparrow

Why am I passionate about this?

I am a child sexual abuse survivor who struggled for years with the help of therapy to become the person I am today. My sister, my mother, and I suffered years of emotional abuse by my father. When I was a child, my best friend (who also suffered abuse by her brother) and I made up stories that helped us navigate the situations in our families. I read, hiked, backpacked, and traveled alone for years in order to take risks and develop strength before attempting to write at age sixty-one. I love books that put me solidly in time and place and deeply empathize with characters who struggle and grow to become their genuine selves.

Karen's book list on strong emotion, excellent plotting, and vivid descriptions that put me securely in time and place

Karen Lynne Klink Why Karen loves this book

I love this book because I became deeply involved with every one of the characters and how they were changed by their interactions with one another and by the results of their first experience with another salient species. The book involves the age-old questions of faith, God, religion, and humanity. Beautiful and haunting.

By Mary Doria Russell ,

Why should I read it?

7 authors picked The Sparrow as one of their favorite books, and they share why you should read it.

What is this book about?

'The Sparrow is one of my favourite science fiction novels and it destroyed me in the best way when I read it. It is so beautifully written and the construction of the narrative is masterful.'
Emma Newman, acclaimed author of Planetfall

Set in the 21st century - a number of decades from now - The Sparrow is the story of a charismatic Jesuit priest and talented linguist, Emilio Sandoz, who - in response to a remarkable radio signal from the depths of space - leads a scientific mission to make first contact with an extraterrestrial culture.

In the true tradition…


Book cover of Star Surgeon
Book cover of Carl Sagan's Cosmic Connection
Book cover of The Hitchhiker's Guide to the Galaxy

Share your top 3 reads of 2025!

And get a beautiful page showing off your 3 favorite reads.

1,367

readers submitted
so far, will you?

5 book lists we think you will like!

Interested in extraterrestrial life, space horror, and doctors?

Space Horror 32 books
Doctors 104 books