Say “underpants” to a room of four-year-olds and you will not need a second joke. But the laugh is only half of why this shelf exists. Underwear is usually the first piece of clothing a child pulls on without help, the reward at the end of potty training, and the one garment nobody is supposed to see — which makes it the perfect thing to lose, steal, glow in the dark, or forget entirely on the way to school. Authors have noticed. In these books aliens raid the laundry line, a dragon terrorizes a kingdom in a suspiciously familiar outfit, a hypnotized principal fights crime in briefs and a cape, and a chicken in a bow tie explains what people actually wore under their clothes for the last five thousand years.
Bookroo’s collection of 63 underwear books runs from sturdy board books for toddlers who have just graduated from diapers to comic-packed chapter books that turn one silly word into a whole plot. Our editors picked twelve that do different jobs: the modern read-aloud classic, the series that launched a million reluctant readers, two board books that sneak in counting and colors, a knight story, a graphic novel, and a genuinely useful history book. Start with the shortlist, then browse board books for the potty-training stretch, picture books for ages three to eight, and early readers and chapter books for kids who can deliver the punch line themselves.
Jasper Rabbit’s new underwear glows ghoulish green in the dark, and no matter how far he throws it away, it comes back.
Two fourth-grade pranksters hypnotize their principal and accidentally turn him into a superhero who fights crime in his underwear.
Aliens are not invading Earth for our leaders or our planet. They are here for the underpants on the laundry line.
Big kid vegetables parade their colorful underwear while the baby carrots, still in diapers, look on in envy.
Polar Bear cannot find his underwear, so Mouse helps him try on every pair in the forest until one finally fits.
Two bears, three yaks, four goats, and six cats each want the same one big pair of underwear.
Cole is only the assistant knight, so when a dragon threatens the kingdom, the smallest person present has to handle it.
The forest lives in terror of the wolf, and a few clever animals are making a fortune selling fear, until the wolf strolls in wearing striped underpants.
A worn-out bear dad wants bedtime to happen. His cub wants to wear the underwear as a hat, a cape, and a pair of goggles.
Professor Chicken explains what people have actually worn under their clothes, from ancient loincloths to hoop skirts and long johns.
Arthur keeps dreaming he shows up at school in nothing but his underwear, so he decides the safest plan is never to sleep again.
Mouse’s knitting shop has no customers until a colony of shivering ants turns up needing very, very small clothes.
Big-kid undies, diapers left behind, animals in bloomers, and first counting and color books built for sticky hands — ages 0–4.
Discover the dos and don'ts of underwear in this playful guide.
A monster's quest for the perfect undies leads to unexpected challenges.
A reluctant bear must leap in ballet, but her secret underpants hold her back.
A toddler's journey to ditch diapers for big girl panties.
A young boy embarks on a journey to ditch diapers for big boy underpants.
Bear's friends reveal their quirky underwear choices, but Fishy has a surprise.
A toddler tackles potty training with new undies and Daddy's support.
Discover the ABCs with animals in hilarious underwear!
Discover the fun and quirky world of animal funderpants!
Celebrate the big step from diapers to underpants with fun and excitement.
Celebrate the big leap from diapers to underpants with a fun board book for toddlers.
Missing undies, alien thieves, dinosaur laundry raids, holiday silliness, and the classic school-in-your-underwear nightmare — ages 3–8.
A boy must save Santa from a hilarious mishap.
Discover animals' quirky underwear secrets in this lift-the-flap adventure.
Aliens save Christmas when Santa's sleigh breaks down.
A hedgehog's secret love for underwear challenges tradition. Will he dare to reveal it?
Discover the hilarious truth behind the dinosaurs' extinction: an epic Underpants War!
Santa Claus prepares for Christmas Eve.
Monsters secretly love dancing in silly underpants. Can they hide their secret before dawn?
Pirates embark on a zany quest for the legendary Pants of Gold.
Chaos erupts when barnyard animals squeeze into a farmer's underpants, mistaking them for a coat.
Bear discovers a backpack of underwear, sparking a wild adventure.
Discover the dos and don'ts of underwear in a playful, colorful adventure.
Aliens crash-land in a jungle, sparking a hilarious underpants war with prehistoric creatures.
Comic-book superheroes, graphic novels, school mysteries, and joke-packed short chapters for readers going solo — ages 6–12.
A mischievous boy's antics lead to chaos and unexpected profits.
Aliens must save Earth from a meteor to protect their beloved underpants.
Explore life's quirks through 112 witty poems that spark laughter and thought.
Strange events plague a school. Can two kids stop the chaos before it's too late?
A boy's cries of 'underpants' throw a city into chaos. Can he fix the mess?
A principal's new outfit causes a hilarious school-wide stir.
A missing bag, a looming prank, and an unlikely duo must avert disaster at school.
