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Triangle

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( 5,860 ratings, 845 reviews)
Book Hero Magic crafted this summary to help describe this book. While it's new and still learning, it may not be perfect - your feedback is welcome! Summary
Triangle by Mac Barnett, aimed at children, is part of a playful series exploring the antics of a mischievous Triangle. Triangle plans a trick on his friend Square by sneaking up on him and attempting to scare him. This lighthearted tale explores themes of friendship and mischief with quirky illustrations adding to the humour.
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Format: Hardback
$2700
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$2999
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Book Hero Magic created this recommendation. While it's new and still learning, it may not be perfect - your feedback is welcome! IS THIS YOUR NEXT READ?

You might enjoy this delightful children's book if you appreciate mischievous characters and playful storytelling. With its imaginative narrative and whimsical illustrations, it captivates young readers, sparking laughter and creativity as it explores themes of friendship and clever antics.

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Triangle

After Triangle plays a trick on Square, Square plans to reciprocate but runs into trouble when he tries to enter the triangular doorway of Triangle's home.

Book Hero Magic formatted this description to make it easier to read. While it's new and still learning, it may not be perfect - your feedback is welcome! Description

Part of the Shapes Trilogy, the books that inspired Shape Island from Apple TV+

Multi-award-winning, New York Times best-selling duo Mac Barnett and Jon Klassen conspire again on a slyly funny tale about some very sneaky shapes.

Meet Triangle. He is going to play a sneaky trick on his friend, Square. Or so Triangle thinks...

With this first tale in a new trilogy, partners in crime Mac Barnett and Jon Klassen will have readers wondering just who they can trust in a richly imagined world of shapes. Visually stunning and full of wry humour, here is a perfectly paced treat that could come only from the minds of two of today’s most irreverent — and talented — picture book creators.

Series: The Shapes Trilogy

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Book Hero Magic summarised reviews for this book. While it's new and still learning, it may not be perfect - your feedback is welcome! HOW HAS THIS BEEN REVIEWED?

Triangle by Mac Barnett, illustrated by Jon Klassen, is applauded for its quiet yet elegant illustration and precise comedic timing that pairs perfectly with Barnett's deadpan prose. Critics appreciate the book's clever narrative and the dynamic between the characters Triangle and Square, drawing parallels to classic character duos with a unique twist. The minimalist visuals evoke beautiful and surreal landscapes, while the repetitive text and expressive illustrations engage young readers. Reviewers also note the book's humorous and offbeat nature, reinforcing the creators' reputation for delivering delightful and thought-provoking children's literature.

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Book Details

INFORMATION

ISBN: 9780763696030

Publisher: Candlewick Press,U.S.

Format: Hardback

Date Published: 14 March 2017

Country: United States

Imprint: Candlewick Press,U.S.

Contributors:

  • Illustrated by Jon Klassen

Audience: Children

DIMENSIONS

Spine width: 11.0mm

Width: 232.0mm

Height: 232.0mm

Weight: 437g

Pages: 48

About the Author

Mac Barnett, the 2025–2026 National Ambassador for Young People’s Literature, is a New York Times best-selling author of stories for children. His work has been translated into more than thirty languages and sold more than five million copies worldwide. Mac Barnett’s books have won many prizes, including two Caldecott Honors, three New York Times/ New York Public Library Best Illustrated Children’s Book Awards, three E. B. White Read-Aloud Awards, the Boston Globe–Horn Book Award, Germany’s Jugendliteraturpreis, China’s Chen Bochui International Children’s Literature Award, the Netherlands’ Zilveren Griffel, and Italy’s Premio Orbil. He is the cocreator, with Jon Klassen, of the Substack Looking at Picture Books, as well as Shape Island, a stop-motion animated series on Apple TV+, based on their best-selling Shapes series of picture books. Mac Barnett lives in Oakland, California.

Jon Klassen is the author-illustrator of I Want My Hat Back, a Theodor Seuss Geisel Honor Book; This Is Not My Hat, winner of the Caldecott Medal and the Kate Greenaway Medal; and We Found a Hat. He is also the illustrator of two Caldecott Honor Books, Sam and Dave Dig a Hole and Extra Yarn, both written by Mac Barnett. Jon Klassen lives in Los Angeles.

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