Thomas Locker Books

In this vividly drawn picture book by award-winning author, two young boys explore with their grandfather to discover where the river begins. “Here is truly a beautiful book.”—The New York Times...

The Boy Who Held Back the Sea

By Thomas Locker, Mary Mapes Dodge, Lenny Hort

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From the award-winning and renowned illustrator Thomas Locker, beautiful oil-painted illustrations pair with this wonderful retelling of the traditional Dutch folktale. Jan had never done anything...

Sailing with the Wind Picture Puffin

By Thomas Locker

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The Young Artist Picture Puffins

By Thomas Locker

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The Mare on the Hill Picture Puffins

By Thomas Locker

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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.