The best children’s books about germs

Why am I passionate about this?

I have a confession: I became an award-winning science communicator for kids sort of by accident. Well, the science part wasn’t an accident… I just didn’t know what I was doing had a name: science communication. I only knew that I had questions! So I set out to approach my questions with facts, humor, empathy, and critical thinking; to interview professionals-in-the-field and to share what I learned from them with kids. For my germs book (I’m Trying To Love Germs), I spoke with professionals in the fields of virology, epidemiology, microbiology, and medicine, and read every kids' germ book I could get my hands on.


I wrote...

I'm Trying to Love Germs

By Bethany Barton,

Book cover of I'm Trying to Love Germs

What is my book about?

This book is covered in germs! (But to be fair, so are we.) Learn all about the microbes in and on our bodies—the ones that help us survive, the ones that make us sick, and everything in between. Did you know that there are more viruses and bacteria on Earth than there are stars in the known universe? I’m Trying to Love Germs is a hilarious and helpful entry point into learning all about those viruses, the pandemic, and even the importance of washing our hands.  

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The books I picked & why

Book cover of It's Catching: The Infectious World of Germs and Microbes

Bethany Barton Why did I love this book?

As a kid, I would have carried It’s Catching with me everywhere, reading facts about our microbial world out loud to anyone who would listen.

Starting with an introduction to a disease detective—who just happens to be the author,  a real-life (female!) science researcher—the book gives a perfectly concise intro to the teeny world of microbiology before branching out into specific players like viruses and bacteria.

My favorite section dives into “Great Germs”—the most common illnesses our bodies face on a global scale. It’s filled with super-interesting anecdotes covering things like the history of the disease, how it was named, how it spreads, or how to prevent it. Each pathogen even gets rated 1-10 on the “Danger-Meter!”  

By Jennifer Gardy, Josh Holinaty (illustrator),

Why should I read it?

1 author picked It's Catching as one of their favorite books, and they share why you should read it. This book is for kids age 8, 9, 10, and 11.

What is this book about?

Don’t be afraid to delve into the good, bad, and sometimes truly ugly world of germs. Microbiologist Jennifer Gardy, who calls herself a disease detective, picks up her microscope to bring expert insight to the microbes that are all around us but are too small to see. Irreverent, playful, and contagious in all the best ways, It’s Catching discusses a range of germs and the diseases they cause, from the common cold to food poisoning to the Ebola virus. Young readers will be enticed — and pretty grossed out — while becoming immersed in information about pus, bacteria, DNA, genomes,…


Book cover of Germy Science: The Sick Truth about Getting Sick (and Staying Healthy)

Bethany Barton Why did I love this book?

Germy Science calls itself “A Gross Science Book” and the icky, phlemy, booger & fart-filled illustrations do not disappoint!

The book does a really great job of giving a well-paced (and hilariously illustrated) history of our human understanding of microbes and medicine: from Ancient Greeks blaming the gods, to our first ventures into hand-washing and pasteurization. Early attempts at inoculation provide lots of gross examples, including 1600s China using ground-up smallpox scabs… eww… but also—wow!

The book even makes a thoughtful  mention of Covid-19 in the section about plagues and pandemics—which is wisely titled “Germs That Changed History”.

By Edward Kay, Mike Shiell (illustrator),

Why should I read it?

1 author picked Germy Science as one of their favorite books, and they share why you should read it. This book is for kids age 8, 9, 10, and 11.

What is this book about?

This perfectly revolting — and perfectly timely! — introduction to germs from award-winning comedy writer Edward Kay will turn any kid into a master of microbes!

Children get up close and personal with germs (ew!) in this entertaining, thoroughly researched exploration of the science and history of these tiny, ubiquitous creatures. Heavy on the gross factor to keep readers engaged, the book covers what germs are, how we get sick, how the human immune system works and the best ways to stay healthy. There are intriguing stories about early attempts to fight disease (heard about corpse catapults? how about shaved…


Book cover of Up Your Nose

Bethany Barton Why did I love this book?

This is the 4th STEM picture book from the Fishman/Greenberg duo and every one of them is worth a read.

Up Your Nose does a great job helping younger readers connect the invisible  world of microbes with things their grown-ups say: phrases like “Wash Your hands!”, “Take A  Bath!” and more. Playful illustration showcases the different types of microorganisms that live in, on, and around us, and even shows us where they like to hide (spoiler alert: it’s kinda everywhere.)

I especially like the part about the barriers our body uses to keep germs at bay:  stuff like our skin, tears, and even mucus!  

By Seth Fishman, Isabel Greenberg (illustrator),

Why should I read it?

1 author picked Up Your Nose as one of their favorite books, and they share why you should read it. This book is for kids age 4, 5, 6, and 7.

What is this book about?

What exactly are germs? And what do they do? The acclaimed and award-winning author and artist of A Hundred Billion Trillion Stars have created a timely—and funny!—introduction to germs and the human body’s natural response to the microscopic (sometimes) organisms. An informative and accessible choice for fans of Andrea Beatty’s Ada Twist, Scientist and Kimberly Derting and Shelli R. Johannes’s Loves Science series.

Did you know that there are quadrillions of germs in the world? And that hundreds of billions of germs may be in the room around you—and inside you as well?

Acclaimed creators Seth Fishman and Isabel Greenberg…


Book cover of The Bacteria Book: The Big World of Really Tiny Microbes

Bethany Barton Why did I love this book?

The Bacteria Book is an in-depth look into one of the heaviest hitters in the microbial world: bacteria.

Even though it’s a bacteria book (quite literally) other microbes get honorable mentions along the way (viruses, fungi, archaea, etc.) helping to round out the information. The book has lots of really interesting photographs and images from microscopes; bacteria on teeth are revealed in all their sticky glory through the magic of the electron microscope.

My son was drawn to the real-world images of molding fruit and zombie ants, and we both appreciated the fact-filled “Timeline of Microbiology” towards the end. 

By Steve Mould,

Why should I read it?

1 author picked The Bacteria Book as one of their favorite books, and they share why you should read it. This book is for kids age 7, 8, and 9.

What is this book about?

In this fun, fact-packed science book for kids, young readers will discover the bacteria, viruses, and other germs and microbes that keep our bodies and our world running, as well as how and when they can be harmful and the precautions we can take to prevent them from becoming so.

Meet a glowing squid, traveling fungus spores, and much more. The Bacteria Book walks the line between "ew, gross!" and "oh, cool!," exploring why we need bacteria and introducing readers to its microbial mates-viruses, fungi, algae, archaea, and protozoa.

The Bacteria Book is a fun and informative introduction to a…


Book cover of Inside Your Insides: A Guide to the Microbes That Call You Home

Bethany Barton Why did I love this book?

Inside Your Insides does a nice job of taking a journey through the body and exploring which microbes live at the stops along the way.

After a brief intro into the microbiome and a distinction between helpful (“Some Of Your Microbes Are Good Guys”) and harmful (“Some of Your  Microbes Are Bad Guys”) little fellas, the book focuses on different areas of the body: skin, mouth, lungs, gut… and dives into information and anecdotes about the microbes that call that region home.

Playful germ-jokes and fun-facts dance along the edges of the pages and the book closes out with tips to treat your microbiome with care.  

By Claire Eamer, Marie-Eve Tremblay (illustrator),

Why should I read it?

1 author picked Inside Your Insides as one of their favorite books, and they share why you should read it. This book is for kids age 8, 9, 10, and 11.

What is this book about?

“Wherever you go, tiny hitchhikers tag along for the ride,” this intriguing illustrated nonfiction book begins. “The hitchhikers are actually microbes --- tiny living things so small that you need a microscope to see them. And every person carries around trillions and trillions of these critters.” Six of the most common “critters” that live in and on our bodies are introduced here: bacteria, archaea, viruses, fungi, protists and mites. Each one has its own preferred environment, and readers will be startled (and likely a little grossed out!) by the many places they live, including the hair follicles on our faces,…


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