Written by Greg van Eekhout & illustrated by Beatrice Blue
8 - 12
Reading age
Page count
Dec 8, 2020
Publication date

Buy from other retailers


What's Cog About

Publisher Summary

Five robots. One unforgettable journey. Their programming will never be the same. Wall-E meets The Wild Robot in this middle grade instant classic about five robots on a mission to rescue their inventor from the corporation that controls them all. Cog looks like a normal twelve-year-old boy. But his name is short for “cognitive development,” and he was built to learn. But after an accident leaves him damaged, Cog wakes up in an unknown lab–and Gina, the scientist who created and cared for him, is nowhere to be found. Surrounded by scientists who want to study him and remove his brain, Cog recruits four robot accomplices for a mission to find her.Cog, ADA, Proto, Trashbot, and Car’s journey will likely involve much cognitive development in the form of mistakes, but Cog is willing to risk everything to find his way back to Gina.In this charming stand-alone adventure, Greg van Eekhout breathes life and wisdom into an unforgettable character and crafts a story sure to earn its place among beloved classics like Katherine Applegate’s The One and Only Ivan.–Bulletin of the Center for Children’s Books

What Kind of Book is Cog

Primarily about

What Should I Know As a Parent

Families are unique and have different expectations for the books they choose to read. The following are concepts included in this book that some parents may wish to seek out or avoid.

Note that this list is not exhaustive and there may be concepts in this book that are not included or have been insufficiently or incorrectly detailed here.

What Questions Should I Ask My Child

  • Cog learns some lessons by making mistakes. What is a mistake you've made, and what lesson did you learn from it?
  • Cog rebels against uniMIND and their desire for control, knowing free will is more important. How do you think Gina helped teach Cog this lesson?


Book Lists That Include Cog

The Creatives Behind the Book

What Has Beatrice Blue Said About This Book

Nothing yet! Let Beatrice Blue know that you want to hear from them about their book.

What Has Greg van Eekhout Said About This Book

Nothing yet! Let Greg van Eekhout know that you want to hear from them about their book.

More Books From These Creatives

    picture • 40 Pages
    Once Upon a Unicorn's Horn
    Beatrice Blue
    picture • 40 Pages
    Once Upon a Dragon's Fire
    Beatrice Blue
    chapter • 208 Pages
    The Ghost Job
    Greg van Eekhout
    View more

Other Books You Might Enjoy If You Liked Cog

    chapter • 256 Pages
    A Wolf Called Wander
    #1 in Series
    Rosanne Parry
    chapter • 224 Pages
    National Hero
    Jennifer Li Shotz
    chapter • 192 Pages
    Jarrett Lerner
    chapter • 208 Pages
    Junkyard Bot: Robots Rule, Book 1
    chapter • 216 Pages
    Monster Mayhem
    Graphic Nov.
    Christopher Eliopoulos
    chapter • 256 Pages
    Small Spaces
    Katherine Arden
    chapter • 217 Pages
    Ninth Ward
    Jewell Parker Rhodes
    chapter • 245 Pages
    The Wind in the Willows
    Kenneth Grahame
    chapter • 240 Pages
    The Fourteenth Goldfish
    Jennifer L. Holm
    chapter • 240 Pages
    The Invasion (Graphic Novel)

Book Details

Publication Date
December 8, 2020
Page Count
Middle Grade
Reading Age
8 - 12 years
Lib. of Congress (LCCN)
WorldCat Number (OCLC)

Contribute to this page

Core Score - 50%

More than halfway there—keep going!

Depth Score - 28%

Just the barebones.

Improve this page

Are you the author or illustrator? Claim your book.

Top Contributors


Book Clubs

Follow Bookroo