Alien Books for Kids · 468 titles considered

The Best Alien Books for Kids

By the Bookroo Editors
Updated July 25, 2026

Children have been drawing the same alien for decades — one antenna too many, an unreasonable number of eyes — and children’s books have spent just as long arguing with that picture. The visitor who actually lands in these stories is usually smaller than expected, badly lost, baffled by shoes, and far more interested in snacks than in conquest. Somebody always ends up having to explain Earth out loud, which turns out to be one of the funniest and strangest things a book can ask a child to do.

Drawing from Bookroo’s collection of 468 alien books, our editors chose crash landings, first-contact comedies, near-wordless standoffs, graphic-novel rescues, and middle-grade science fiction that treats its aliens as characters rather than targets. Start with our fixed shortlist of 15 favorites, then browse by age and reading stage — from board books with friendly antennae to novels that quietly ask what “human” is supposed to mean.

The Boy Who Crashed to Earth
Graphic Nov.
The Search for WondLa
The Shortlist

Our 15 Favorite Alien Books

Sale price
$1597
Picture Book · Ages 3–6 · 2003

Beegu

By Alexis Deacon

An alien stranded on Earth seeks friendship and hope before rescue arrives.

The New York Times/New York Public Library Best Illustrated Children’s Books Award (2003)
40 pages
Best for
Children who have felt like the only one
4.2/5 Goodreads · 1,897 ratings
$16.95Save 6%
Picture Book · Ages 4–7 · 2013

Mr. Wuffles!

Aliens crash-land and team up with insects to outsmart a curious cat.

32 pages
Best for
Close looking and reading a story with almost no words
4.0/5 Goodreads · 7,266 ratings
Picture Book · Ages 4–8 · 2008

The Way Back Home

A boy and a Martian stranded on the moon must find friendship in the dark.

32 pages· 416 words· Est. 4 min read-aloud
Best for
A first story about making friends with someone unlike you
5.5/7 Bookroo experts·4.1/5 Goodreads · 4,154 ratings
$18.99Save 5%
Picture Book · Ages 4–8 · 2024

We Are Definitely Human

Three visitors crash outside a small town, and the neighbors decide they must simply be unwell.

48 pages· 493 words· Est. 4 min read-aloud
Best for
Deadpan humor and talking about kindness to strangers
4.4/5 Goodreads · 1,821 ratings
$18.99Save 5%
Picture Book · Ages 4–8 · 2020

The Smeds and the Smoos

A red alien and a blue alien become friends, though both families insist that is impossible.

32 pages· 906 words· Est. 7 min read-aloud
Best for
A rhyming read-aloud about families who refuse to get along
4.3/5 Goodreads · 1,423 ratings
$17.99Save 6%
Picture Book · Ages 3–7 · 2019

There's an Alien in Your Book

An alien crash-lands in your book. Can you help it return to space?

32 pages· 395 words· Est. 4 min read-aloud
Best for
Wiggly listeners who need to be part of the story
4.2/5 Goodreads · 695 ratings
$17.99Save 6%
Picture Book · Ages 5–6 · 2007

Aliens Love Underpants

By Claire Freedman, Ben Cort (Illustrator)

Aliens invade Earth for one reason: to steal underpants of all shapes and colors.

32 pages· 255 words· Est. 2 min read-aloud
Best for
Laughing until someone falls off the couch
4.1/5 Goodreads · 4,756 ratings
$14.99Save 7%
Picture Book · Ages 4–8 · 1989

Dr Xargle's Book of Earthlets

An alien teacher hilariously explains the quirks of Earth babies to his class.

28 pages
Best for
Laughing at how strange ordinary life looks from outside
4.2/5 Goodreads · 290 ratings
$13.99Save 4%
Picture Book · Ages 4–7 · 2019

Lights on Wonder Rock

A girl signals the night sky for years, and when something finally answers she has to decide whether to go.

40 pages· 518 words· Est. 4 min read-aloud
Best for
Dreamers who are torn between adventure and home
5.5/7 Bookroo experts·4.2/5 Goodreads · 957 ratings
$17.99Save 6%
Chapter Book · Ages 7–10 · 2015

The Boy Who Crashed to Earth

A boy falls out of the sky in silver underwear with no memory, no manners, and something dangerous chasing him.

193 pages· 5,575 words· Est. 1 hour read
Best for
Reluctant readers who will finish a graphic novel in one sitting
4.2/5 Goodreads · 8,122 ratings
$14.99Save 7%
Chapter Book · Ages 8–11 · 2011

Zita the Spacegirl

Pressing a mysterious red button opens a portal that swallows a best friend, so she jumps in after him.

186 pages· 4,260 words· Est. 48 min read
Best for
Independent readers ready for a real space adventure
4.1/5 Goodreads · 19,138 ratings
$14.99Save 7%
Chapter Book · Ages 8–12 · 1989

My Teacher Is an Alien

A sixth grader discovers her substitute teacher is an alien with sinister plans.

160 pages· 22,857 words· Est. 3 hour read
Best for
Third to sixth graders who want a mild scare
3.8/5 Goodreads · 9,046 ratings
$7.99Save 5%
Chapter Book · Ages 8–12 · 2020

Leonard (My Life as a Cat)

A being made of stardust means to spend a month as a human, misses badly, and lands as a cat.

256 pages· 44,685 words· Est. 6 hour read
Best for
Sensitive readers who want an alien story with real feeling
4.3/5 Goodreads · 1,497 ratings
$8.99Save 5%
Chapter Book · Ages 8–12 · 2007

The True Meaning of Smekday

By Adam Rex · Book #1 in the Smek series

A girl and an alien mechanic embark on a wild quest to save Earth from invasion.

423 pages· 86,086 words· Est. 12 hour read
Best for
Confident readers who want a genuinely funny invasion story
4.1/5 Goodreads · 10,122 ratings
$14.99Save 7%
Chapter Book · Ages 10–14 · 2009

The Search for WondLa

By Tony DiTerlizzi · Book #1 in the WondLa series

Raised underground by a robot, a girl reaches the surface and finds a world with no humans in it.

496 pages· 74,098 words· Est. 8 hour read
Best for
Older middle-grade readers who want a whole new world
4.1/5 Goodreads · 14,251 ratings
$22.99Save 5%
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Browse by age

Alien Board Books for Babies & Toddlers

Friendly antennae, flying saucers, and lift-the-flap visitors — sturdy first alien books for ages 0–3.

Hush, Little Alien

Ages 0–18 · 1999

An alien child receives cosmic gifts and a loving goodnight kiss.

How Big Is Zagnodd?

Ages 0–5 · 2020

Discover the size of Zagnodd and meet quirky aliens in a cosmic adventure.

Space Rocket

Ages 0–3 · 2015

Join a space adventure with interactive fun as a bear explores the cosmos.

Lilo & Stitch (Disney Lilo & Stitch)

Ages 2–5 · 2021

A lonely girl and a chaotic alien discover the true meaning of family amidst an alien invasion.

Alien Baby!

Ages 0–4 · 2020

Explore a cosmic day with a curious alien toddler in a flap-filled adventure.

Alien Opposites
Sale price
$999

Alien Opposites

Ages 2–6 · 2001

Aliens invade a boy's home, sparking a night of mischievous opposites.

Alien Adventure
Sale price
$799

Alien Adventure

Ages 3–5 · 2017

Two boys blast into space, meeting aliens. What adventures await?

Chicken Little

Ages 2–5 · 1983

A chick's world is turned upside down. Can he save the day?

Elio

Ages 2–5 · 2025

A young boy's unexpected journey to a new world changes everything.

Say Please, Stitch!

Ages 2–5 · 2023

Stitch learns manners in a fun, chaotic journey.

View all alien board books
Browse by age

Alien Picture Books & Read-Alouds

Crash landings, lost visitors, underpants raids, and first contact in the backyard — read-alouds for ages 3–8.

Hello, Nebulon!

Ages 5–7 · 2013

A young boy moves to a new planet with his family and navigates a new school and friendships.

Even Aliens Need Snacks

Ages 4–8 · 2012

A young chef's alien snacks bring unexpected fame across the galaxy.

If You Come to Earth

Ages 5–8 · 2020

A visitor from outer space learns about life on Earth and its inhabitants.

The Spaceman
Sale price
$1799

The Spaceman

Ages 3–7 · 2024

A stranded Spaceman discovers Earth's wonders and a potential new home.

Ricky Ricotta's Mighty Robot vs. the Unpleasant Penguins from Pluto

Ages 6–8 · 2016

A penguin from Pluto plots Earth's takeover. Can Ricky and his robot stop him?

A Haunted Halloween

Ages 5–9 · 2015

Zack faces eerie events that challenge his disbelief in ghosts this Halloween.

Monsters in Space!
Sale price
$599

Monsters in Space!

Ages 5–7 · 2013

A boy befriends a monster-like alien who is visiting his school on the planet Nebulon

Three's a Crowd!
Sale price
$699

Three's a Crowd!

Ages 5–9 · 2013

A boy is excited to show his friend from Earth around his new home on the planet Nebulon

Ricky Ricotta's Mighty Robot vs. The Naughty Nightcrawlers From Neptune
Graphic Nov.
Sale price
$599

Ricky Ricotta's Mighty Robot vs. The Naughty Nightcrawlers From Neptune

Ages 4–8 · 2016

A boy and his robot must stop an alien invasion from Neptune

The Sneaking, Hiding, Vibrating Creature

Ages 4–8 · 2021

Blue beings mimic a mysterious creature, sparking hilarity and wonder.

Ricky Ricotta's Mighty Robot vs. The Stupid Stinkbugs from Saturn
Graphic Nov.
Sale price
$599

Ricky Ricotta's Mighty Robot vs. The Stupid Stinkbugs from Saturn

Ages 4–8 · 2015

A boy and his robot save the world from an evil space bug who tries to kidnap a princess and take over the planet.

Journey to Juno
Sale price
$699

Journey to Juno

Ages 5–9 · 2013

A young boy named Zack Nelson explores the planet Juno with his school's Explorers Club and makes a groundbreaking discovery

Browse by age

Alien Chapter Books & Middle Grade

Suspicious substitute teachers, graphic-novel rescues, stranded visitors, and full-scale invasions for independent readers ages 6–12.

Cinder

Ages 11–15 · 2012

A cyborg mechanic must uncover her past to save Earth from a lunar threat.

The 5th Wave

Ages 12–18 · 2013

Survive the alien invasion: trust no one, not even those who look human.

January Joker

Ages 6–9 · 2009

A group of kids try to figure out what is happening when their friends and pets start disappearing.

Fangbone! Third-Grade Barbarian
Graphic Nov.
Sale price
$799

Fangbone! Third-Grade Barbarian

Ages 7–9 · 2012

A young barbarian must protect a deadly weapon from a villain in a new world.

Ender's Game
Sale price
$1899

Ender's Game

Ages 12–18 · 1985

A boy genius leads Earth's last stand against alien invaders, unaware of the true stakes.

The Predator (Graphic Novel)

Ages 8–12 · 2024

A reluctant hero must protect Earth from a hidden alien threat.

Frozen Enemies

Ages 9–13 · 2013

A school trip to a space museum unleashes rival alien tribes.

Bad Guys in Do-You-Think-He-Saurus?
Graphic Nov.
0

Bad Guys in Do-You-Think-He-Saurus?

Ages 8–12

Winter

Ages 12–18 · 2015

A princess and her allies must overthrow an evil queen to end a war.

Cress
Sale price
$2499

Cress

Ages 12–17 · 2014

A hacker's freedom could save Earth from invasion, but at what cost?

Scarlet
Sale price
$2499

Scarlet

Ages 12–18 · 2013

A cyborg fugitive and a determined girl race against a ruthless queen to uncover hidden truths.

Skyward
Sale price
$2199

Skyward

Ages 12–17 · 2018

A determined girl uncovers a secret that could help her become a pilot in a war-torn world.

Keep exploring
Books about spaceBooks about science fictionBooks about first contactBooks about alien invasionsBooks about UFOsBooks about robotsBooks about monstersBooks about astronautsBooks about planetsBooks about space travelBooks about spacecraftBooks about time travelBooks about being differentGraphic novels

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