Get personalized recommendations and earn points toward a free book!
Before you go...
Check Out
The Bestselling Books of All Time
See the List
Happy Pi Day to You! by Bonnie Worth

Happy Pi Day to You!

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

By Bonnie Worth
Illustrated by Aristides Ruiz and Joe Mathieu

Best Seller

Part of Cat in the Hat’s Learning Library

Part of Cat in the Hat’s Learning Library

Hardcover $9.99

Feb 04, 2020 | 48 Pages | 5-8 years

Hardcover $12.99

Feb 04, 2020 | 48 Pages | 5-8 years

All Formats
+
    Happy Pi Day to You! by Bonnie Worth
    Hardcover
    Feb 04, 2020 | 48 Pages

    Hardcover (2)
    –

    • Hardcover $9.99

      Feb 04, 2020 | 48 Pages | 5-8 years

    • Hardcover $12.99

      Feb 04, 2020 | 48 Pages | 5-8 years

    Buy the Hardcover:

    Also by Bonnie Worth

    Cows Can Moo! Can You?
    One Vote, Two Votes, I Vote, You Vote
    Oh, the Things They Invented!
    Once upon a Mastodon
    Hark! A Shark!
    See all books by Bonnie Worth

    Also by Bonnie Worth

    Cows Can Moo! Can You?
    One Vote, Two Votes, I Vote, You Vote
    Oh, the Things They Invented!
    Once upon a Mastodon
    Hark! A Shark!
    See all books by Bonnie Worth

    About Bonnie Worth

    Bonnie Worth is the author of countless books for young readers, among them 18 of the Cat in the Hat’s Learning Library books, including Oh Say Can You Say Di-No-Saur?, If I Ran the Rain Forest, Oh Say Can You Seed? (winner… More about Bonnie Worth

    About Bonnie Worth

    Bonnie Worth is the author of countless books for young readers, among them 18 of the Cat in the Hat’s Learning Library books, including Oh Say Can You Say Di-No-Saur?, If I Ran the Rain Forest, Oh Say Can You Seed? (winner… More about Bonnie Worth

    Product Details

    Category: Children’s Picture Books

    Hardcover | $9.99
    Published by Random House Books for Young Readers
    Feb 04, 2020 | 48 Pages | 6-1/2 x 9 | 5-8 years | ISBN 9780525579939

    Category: Children’s Picture Books

    Hardcover | $12.99
    Published by Random House Books for Young Readers
    Feb 04, 2020 | 48 Pages | 6-1/2 x 9 | 5-8 years | ISBN 9780525579946

    Inspired by Your Browsing History

    Also in Children’s Picture Books

    ‹ ›
    Our Favorite Day
    Our Favorite Day
    Joowon Oh
    Kiss Good Night
    Kiss Good Night
    Amy Hest
    The Glassblower's Children
    The Glassblower’s Children
    Maria Gripe
    Granddaddy's Turn
    Granddaddy’s Turn
    Eric Stein and Michael S. Bandy
    If I Built a House
    If I Built a House
    Chris Van Dusen
    Stephen Biesty's Cross-Sections Man-of-War
    Stephen Biesty’s Cross-Sections Man-of-War
    Richard Platt
    Code Like a Girl: Rad Tech Projects and Practical Tips
    Code Like a Girl: Rad Tech Projects and Practical Tips
    Miriam Peskowitz
    I'm a Gnome!
    I’m a Gnome!
    Jessica Peill-Meininghaus
    Minecraft: The Island
    Minecraft: The Island
    Max Brooks
    Magician's Gambit/Wild Goose Chase!
    Magician’s Gambit/Wild Goose Chase!
    Gabe Soria
    Dragons in a Bag
    Dragons in a Bag
    Zetta Elliott
    Call of the Klondike
    Call of the Klondike
    Kim Richardson and David Meissner
    What Is the Story of Wonder Woman?
    What Is the Story of Wonder Woman?
    Steve Korte and Who HQ
    What Is the Story of Frankenstein?
    What Is the Story of Frankenstein?
    Who HQ and Sheila Keenan
    If I Built a School
    If I Built a School
    Chris Van Dusen
    Ghost and Bone
    Ghost and Bone
    Andrew Prentice
    Fright-and-Seek
    Fright-and-Seek
    Lei Melendres
    The Curse of the Werepenguin
    The Curse of the Werepenguin
    Allan Woodrow
    Garbage Island
    Garbage Island
    Fred Koehler
    Doggy Defenders: Tiger the Police Dog
    Doggy Defenders: Tiger the Police Dog
    National Geographic, Kids
    Doggy Defenders: Dolley the Fire Dog
    Doggy Defenders: Dolley the Fire Dog
    National Geographic, Kids
    Disney Princess Beginnings: Moana's Big Leap (Disney Princess)
    Disney Princess Beginnings: Moana’s Big Leap (Disney Princess)
    Suzanne Francis
    When Everyone Was Fast Asleep
    When Everyone Was Fast Asleep
    Tomie dePaola
    Just Like Beverly
    Just Like Beverly
    Vicki Conrad
    Build a LEGO Mustang
    Build a LEGO Mustang
    Pawel Sariel Kmiec
    SumoKitty
    SumoKitty
    David Biedrzycki
    Why?
    Why?
    Laura Vaccaro Seeger
    A Pumpkin for Peter
    A Pumpkin for Peter
    Beatrix Potter
    Riding a Donkey Backwards
    Riding a Donkey Backwards
    Khayaal Theatre Company and Sean Taylor
    Pirate Adventure
    Pirate Adventure
    Adam Hargreaves
    As Warm As the Sun
    As Warm As the Sun
    Kate McMullan
    DK Life Stories: Jane Goodall
    DK Life Stories: Jane Goodall
    Libby Romero
    Arithmechicks Add Up
    Arithmechicks Add Up
    Ann Marie Stephens
    The Secret Life of the Skunk
    The Secret Life of the Skunk
    Laurence Pringle
    Doggy Defenders: Willow the Therapy Dog
    Doggy Defenders: Willow the Therapy Dog
    National Geographic, Kids
    Doggy Defenders: Stella the Search Dog
    Doggy Defenders: Stella the Search Dog
    National Geographic, Kids
    National Geographic Readers: Deadly Animals Collection
    National Geographic Readers: Deadly Animals Collection
    Laura Marsh and Melissa Stewart
    The Very Short, Entirely True History of Unicorns
    The Very Short, Entirely True History of Unicorns
    Sarah Laskow
    My Grandma and Me
    My Grandma and Me
    Mina Javaherbin
    Hooray for Women!
    Hooray for Women!
    Marcia Williams
    DUCK!
    DUCK!
    Meg McKinlay
    I Thought I Saw a Bear!
    I Thought I Saw a Bear!
    Templar Books
    I Thought I Saw an Elephant!
    I Thought I Saw an Elephant!
    Templar Books
    Arnica, the Duck Princess
    Arnica, the Duck Princess
    ERVIN LAZAR
    Mickey Mouse: The Quest for the Missing Memories
    Mickey Mouse: The Quest for the Missing Memories
    Francesco Artibani
    Looking for More Great Reads?
    Download our Spring Fiction Sampler Now
    Back to Top

    Visit other sites in the Penguin Random House Network

    Brightly

    Raise kids who love to read
    TASTE img

    TASTE

    An online magazine for today’s home cook

    LitFlash

    The eBooks you want at the lowest prices

    Read it Forward

    Read it first. Pass it on!