Astro Boy Review: Tezuka’s Little Robot Still Sets the Standard
A full review of Astro Boy by Osamu Tezuka - the cheerful, surprisingly heavy manga that helped invent the medium, and the Dark Horse editions worth owning.
By Web Admin
Before manga was a global industry, before the term even meant what it means today, there was a small atomic-powered boy with rocket boots and a heart that would not quit. Astro Boy, created by Osamu Tezuka and known in Japan as Tetsuwan Atom (Mighty Atom), first appeared in 1952 and ran through 1968. Tezuka, often called the God of Manga, more or less wrote the grammar the entire medium still speaks. This is our full review of Astro Boy – what it actually reads like today, which edition to buy, and why a seventy-year-old kids comic still lands harder than most modern books.
If you only know Astro from cartoons or the 2009 CGI film, the manga will surprise you. It is funnier, stranger, and far sadder than its bright design suggests.
The manga that helped build the medium. Warm, wildly inventive, and quietly heartbreaking. Dark Horse collected the…
Check price on Amazon$17.89as of Nov 12, 2026 10:25 pm UTCOur verdict (4.7/5): The manga that helped build the medium. Warm, wildly inventive, and quietly heartbreaking. Dark Horse collected the series across 23 slim volumes, later re-issued in omnibus editions.
What is Astro Boy?
Astro Boy is a science-fiction adventure manga written and drawn by Osamu Tezuka. The premise is pure mid-century wonder: in a future where robots and humans live side by side, a grieving scientist named Dr. Tenma builds a robot boy to replace his dead son. When the robot cannot grow up the way a human child would, Tenma rejects him. The little robot - eventually named Atom, or Astro - is taken in by the kindly Professor Ochanomizu and becomes a superheroic protector of both humans and robots. He has seven powers, including flight, super-strength, and searchlight eyes, and an unshakable sense of right and wrong.
The stories are mostly episodic, which makes the series easy to dip into. But running underneath the rocket-fights is a genuinely thoughtful conversation about prejudice, personhood, and what we owe the things we create.
Osamu Tezuka and why he matters
You cannot overstate Tezuka's importance. Across his career he produced a staggering body of work - Astro Boy, Black Jack, Phoenix, Buddha, and the darkly adult MW and Ode to Kirihito among them. He pioneered the cinematic panel-to-panel storytelling, the big expressive eyes, and the long-form serialized structure that defined manga for generations. Reading Astro Boy is a bit like watching an artist invent the toolkit everyone else would inherit. When later masters like Naoki Urasawa reinterpreted this material in Pluto, they were paying homage to the foundation Tezuka laid here.
The story: adventure with a conscience
On the surface, each chapter is a self-contained adventure: rogue robots, mad inventors, alien threats, natural disasters. Astro flies in, saves the day, and cracks a joke. But Tezuka keeps sliding heavier material underneath. Robots are second-class citizens. Astro is abandoned by his own creator. Villains are often victims of human cruelty rather than pure evil. The famous "The Greatest Robot on Earth" arc, in which a robot named Pluto is built to destroy the world's most powerful robots, is genuinely tragic - so much so that it inspired an entire acclaimed reimagining decades later.
The themes: prejudice, personhood, and pacifism
What keeps Astro Boy alive is its moral seriousness. Tezuka lived through the Second World War, and his revulsion at violence runs through everything. Astro is a weapon who refuses to be one. The series returns again and again to a simple, radical idea: a being should be judged by its actions and its heart, not by what it is made of. That message about tolerance and coexistence is why the book still works in classrooms and why it belongs on any list of the best manga of all time.
The art: clean, cartoony, cinematic
Tezuka's linework is deceptively simple - rounded, friendly, endlessly readable. Do not mistake simplicity for a lack of craft. His action sequences move with real cinematic energy, his page layouts guide the eye effortlessly, and his character acting sells both slapstick and heartbreak. Because the art is so clean, the manga has aged beautifully; it does not feel dated the way a lot of 1950s adventure fiction does. This clarity is exactly why it works so well for newcomers, and why we recommend it in our best manga for beginners guide.
Content notes: gentler than most, but not toothless
For the most part, Astro Boy is genuinely all-ages, and it sits proudly on our best all-ages comics list. That said, be aware it does not talk down to kids. There is cartoon violence, characters (including robots treated as people) die, and the themes of abandonment and discrimination can hit surprisingly hard. Tezuka also occasionally uses ethnic caricatures typical of his era that read as dated or offensive today; some modern editions include editorial notes acknowledging this. It is worth a word to younger or more sensitive readers.
Pros and cons
Pros
- Foundational, genre-defining manga from the master himself
- Clean art that has aged remarkably well
- Episodic structure is easy to pick up and put down
- Surprisingly deep themes of tolerance and personhood
Cons
- Some period-typical caricatures feel dated
- Episodic format means less long-arc momentum
- The full 23-volume run is a real commitment
Which edition should you buy?
Dark Horse released the definitive English-language Astro Boy across 23 slim paperback volumes between 2002 and 2004, each running roughly 200-plus pages. Those individual volumes have since been re-collected into larger omnibus editions that are far better value if you want to go deep. Here is how the main options compare.
| Edition | Collects | Best for |
|---|---|---|
| Single volume (Vol. 1) | Early stories | Trying it out |
| Omnibus edition | Several volumes each | Best value binge |
| Full 23-volume set | The entire run | Collectors and completists |
For a first taste, grab Volume 1 or the first omnibus. If you fall for it - and you might - the omnibus route is the smart way to collect the whole thing without hunting down two dozen separate books.
Get Astro Boy Omnibus Vol. 1 on Amazon
Where Astro Boy fits in your reading
If you love thoughtful science fiction, Astro Boy is a natural gateway to more of the genre - see our best sci-fi manga guide for where to go next. And if the tragedy of the Pluto arc grabs you, do not miss Naoki Urasawa's Pluto, a stunning adult reworking of that exact story. You can also browse the wider manga hub for more starting points.
The verdict
Seventy years on, Astro Boy is not a museum piece - it is a living, breathing comic that still entertains and still moves. Tezuka packed genuine philosophy into a book about a flying robot kid, and he did it with warmth, wit, and total command of the form. It is essential reading for anyone serious about manga, a delight for newcomers, and a permanent fixture near the top of our best manga of all time list.
Frequently asked questions
Do I need to read Astro Boy in order?
Not really. The series is largely episodic, so you can jump into most volumes without prior context. The Dark Horse volumes are numbered but do not follow strict chronological order, and each includes a note from Tezuka on the stories inside.
Is Astro Boy suitable for children?
Mostly yes - it is one of the more genuinely all-ages manga out there. Just be aware of cartoon violence, occasional character deaths, and some dated caricatures. It is a great shared read for parents and kids.
How many volumes of Astro Boy are there?
Dark Horse collected the manga into 23 volumes, later re-issued in larger omnibus editions. That represents the bulk of Tezuka's original run from 1952 to 1968.
Is the manga different from the cartoons?
Yes, considerably. The manga is funnier, stranger, and far darker in its themes than the various anime and the 2009 film. If you only know the screen versions, the original comic will surprise you.
Next, compare it with its modern successor in our Pluto review, or line it up against other giants in our best manga of all time guide.
Is Astro Boy connected to Pluto?
Pluto is a modern retelling of Astro Boy's most famous story, "The Greatest Robot on Earth," reimagined by Naoki Urasawa as an adult murder mystery with Tezuka's estate's blessing. You do not need to read Astro Boy first, but knowing the original adds a lot. Our Pluto review explains how the two compare.
Was Astro Boy the first manga?
Astro Boy was not the first manga, but it is one of the most influential ever made. Japanese comics existed long before it, and Osamu Tezuka himself had a hit with New Treasure Island in 1947. Astro Boy's popularity, and its 1963 anime adaptation, helped establish the manga and anime industries in the form we know them today.
What other Osamu Tezuka manga should I read?
After Astro Boy, the best Osamu Tezuka manga to read are Black Jack, an episodic medical drama about a rogue surgeon, Phoenix, his sprawling epic about life and death across time, and Buddha, a funny and moving retelling of the Buddha's life. All three are aimed at older readers than Astro Boy and show how far Tezuka's range went.
Is Astro Boy worth reading as an adult?
Astro Boy is worth reading as an adult, especially if you care about manga history or like science fiction with a moral core. The stories are aimed at children, but they deal frankly with prejudice, war and what it means to be a person. Adults often find it sadder and more thoughtful than they expected from its cheerful look.
