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Finn the Frog

This Book Is Viral!: A Funny Interactive Picture Book About Kindness and Friendship

From the creators of the beloved bestseller This Book Is Perfect!, comes an unforgettable and hilarious story about finding help in unexpected places…

Finn the Frog is convinced he's gone viral for his fame and charm, but when a sick reader opens his book, Finn's about to face a whole new challenge—GERMS! What starts as a simple request for help quickly spirals into a hilarious medical mishap, as Finn tries (and fails) to cure the reader… and ends up catching a cold himself!

With sneezes, strange remedies, and comical chaos at every turn, Finn learns that being famous isn’t always easy—especially when you're under the weather. Will these two unlikely patients find a way to recover, or will Finn's "viral" fame take a whole new meaning?

Order your copy of This Book Is Viral! today and dive into an interactive adventure that’s sure to bring laughter to kids and adults alike!

For kids ages 3, 4, 5, 6, and 7, and grades K-3

Other books in the Finn the Frog Collection®:
This Book Is Perfect!
This Book Is On Fire!
This Book Is A Mistake!
This Book Stinks!

44 pages, Hardcover

Published August 5, 2025

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About the author

Ron Keres

18 books43 followers
Ron is husband to Jen, and father to three silly boys and one sweet little girl. Ron is the award-winning author of "The Scariest Story You’ve Ever Heard," and "This Book Is Perfect!," part of the popular Finn the Frog Collection. All of his books are illustrated by the very talented and whimsical artist, Arthur Lin, from San Francisco.

“Life with kids is an amazing adventure—one I would not trade for the world. One of my favorite times of the day is when my kids snuggle up on my lap to read a few books before bed. I absolutely love how picture books capture their imagination, make them laugh out loud, and bond us closer together. To be able to provide those moments for other families with my own books has become one of my greatest joys in life.”

Ron was born and raised in the suburbs of Chicago. You can follow Ron at facebook.com/picturebookdad

Ratings & Reviews

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Community Reviews

5 stars
684 (71%)
4 stars
132 (13%)
3 stars
69 (7%)
2 stars
34 (3%)
1 star
33 (3%)
Displaying 1 - 20 of 20 reviews
Profile Image for Zowie Norris.
825 reviews40 followers
June 16, 2026
delightful, laugh-out-loud

What a delightful, laugh-out-loud masterpiece! This Book Is Viral! is an absolute triumph for young readers, perfectly blending hilarious medical mishaps with a heartwarming message about empathy and kindness. As detailed in the book's description in image.png, Finn the Frog’s chaotic journey from chasing internet fame to dealing with a literal "viral" cold is both incredibly engaging and deeply relatable for kids. The narrative brilliantly uses interactive humor, strange remedies, and comical sneezes to keep children giggling from start to finish, making it an instant favorite for bedtime reading or classroom read-alouds.
What truly elevates this story, however, are the brilliant and expressive illustrations that bring Finn's world to life. As highlighted in image.png, these silly, playful visual surprises perfectly capture the essence of Finn’s dramatic personality and the giggle-worthy chaos that unfolds around him. The artwork acts as the perfect comedic partner to the text, using vivid, expressive character designs to beautifully convey the transition from Finn's initial charm to his under-the-weather realization. It is a visually stunning, emotionally resonant, and wonderfully silly package that kids aged 3–8 will want to read over and over again.
27 reviews
January 24, 2026
A classroom must

Follow Finn the Frog as he thinks he’s famous, only to be confronted with germs, sneezes, and comical chaos when the reader (yes, you!) gets sick. The story quickly turns into a giggle-worthy adventure full of sneezes, strange remedies, and unexpected situations that keep kids engaged and laughing.
The bright, energetic illustrations add to the comedy and give the book an interactive feel that works beautifully during group story time. Students love reacting to each page, predicting what might happen next, and laughing along together. It’s the kind of book that instantly becomes a classroom favorite and is often requested again and again.
201 reviews
July 22, 2026
Finn is a popular frog who lives in a book. When he sees that you, the reader, could be sick he does not want to get sick too. He plays doctor to help the reader get well, but only gets sick himself. He counts on the reader to help him feel better, but these human remedies only make things worse for him. Finally, when taking into account what our frog truly needs, does he get better. He realizes that kindness is more important than popularity.

Falls into the interactive stories category. Could really play this up as a read aloud at the beginning of winter for grades k/1/2. More in the series that I look forward to reading.
Profile Image for Barbara Appleby.
Author 5 books
August 3, 2025
so cute

So cute! Your little people will love it. It’s a book about making friends and people meds and frogs. Cute.
Profile Image for Stephanie.
4 reviews
August 12, 2025
great read!

My son and I really enjoyed reading this book together at bedtime! It was fun interacting with Finn the frog.
Profile Image for S.A. Krishnan.
Author 30 books245 followers
August 26, 2025
Four Point Four Stars
Finn the Frog is viral! But while reading this book, he actually gets a virus. What happens after that? Cute illustrations and lovely read for older children. Liked it.
2 reviews
September 20, 2025
love it

My 8 year old daughter loves all of these books for her bedtime stories. Finn the frog and his great shenanigans.
11 reviews
October 1, 2025
We love this book

We thought it was a very good and Grandma did not know frogs breathe through their skin, but we dd x
Profile Image for Jean Suarez.
7 reviews
October 6, 2025
fun book

I thought this was a fun read for a young child. I would recommend it if you were looking for your child to laugh.
3 reviews
October 8, 2025
so funny

When he looked like a cherry I laughed so hard, it was so funny and then he got a rash on his butt!! Lol
1 review1 follower
October 20, 2025
love

Funny book with a good message. We love Finn the frog. And reading about his adventures. We always laugh with these books and live the pictures
Profile Image for Jessica Brown.
3 reviews10 followers
November 30, 2025
Fun story

My son's favorite part is when the frog has spots on his bum. 😂 I like when the reader sneezed on the page. Great book.
Profile Image for Tahni.
69 reviews
January 16, 2026
Cute Read

Such a cute read and continuation from a lovable series of books. This book was great for small children and always brings out the giggles.
Profile Image for Victoria.
22 reviews
April 10, 2026
Help A Frog

Adorable book with the cutest illustrations. I read aloud with dramatizations, and the Kids loved. Entertaining and best of all…kind.
Profile Image for Elizabeth.
6,920 reviews116 followers
May 13, 2026
This Book Is Viral!: A Funny And Interactive Story For Kids by Ron Keres– This is on kindle unlimited. The perfect book for a kiddo sick in bed! Happy Reading!
56 reviews
August 2, 2025
silly Finn again!!!

I love Ron’s Finn books- they are silly, relatable and engaging for young children! There is even a lesson about kindness in this goofy little story.
Displaying 1 - 20 of 20 reviews