Oliver Jeffers Books

How to Catch a Star

By Oliver Jeffers

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Lost and Found

By Oliver Jeffers

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What's the opposite

By Oliver Jeffers

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Here We Are

By Oliver Jeffers

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Once Upon an Alphabet

By Oliver Jeffers

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Perfect for gift-giving, here isTHE alphabet book to top all others, an over-sized work of brilliance from the illustrator of the #1 New York Times bestselling The Day the Crayons Quit! If words ma...

Once There Was a Boy... Boxed Set

By Oliver Jeffers

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Perfect for gift-giving, a boxed set of three brilliant picture books by the illustrator of The Day the Crayons Quit, Oliver Jeffers Ten years ago, Oliver Jeffers' first picture book, How to Catch...

The Hueys in It Wasn t Me

By Oliver Jeffers

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The Hueys in None The Number

By Oliver Jeffers

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Lost and Found

By Oliver Jeffers

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From the illustrator of the #1 smash hit The Day The Crayons Quit comes a humorously warm tale of friendship. Now also an animated TV special!What is a boy to do when a lost penguin shows up at his...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.