I will be using this book for:

Triangle (The Shapes Trilogy)

by Mac Barnett

Children's Books Picture Books Geometry

0.0 out of 5 stars (0 ratings)

View on Amazon View on BAM Trade it in for cash!

Mac Barnett’s Triangle is part of The Shapes Trilogy, a shape-themed series for young readers. With its concise title and playful conceptual focus, the book introduces a triangle-centered entry in the trilogy, offering an accessible choice for children exploring imaginative stories built around familiar shapes.

ISBN-13 9780763696030 ASIN 076369603X Views 82 Publisher Candlewick Year 2017 Edition Illustrated Format Hardcover Product Group Book Pages 48 Illustrator Klassen, Jon Created February 28, 2026 Updated October 18, 2026

About This Book

Triangle is a book by Mac Barnett.

It is part of The Shapes Trilogy.

The title places triangles at the center of this shape-themed series.

This edition is identified by ISBN 076369603X.

Reviews

No reviews yet. Be the first to review this book!

I will be using this book for:

Triangle (The Shapes Trilogy)

About This Book

Reviews

Write a Review

I will be using this book for: