John A. Brown Books

""Oh God, here comes Esther Ross." Such was the greeting Ross received from members of the U.S. Congress during her repeated trips to the Capitol on behalf of the Stillaguamish Indians. Tenacious a...

Indians of the Pacific Northwest

By Robert H. Ruby

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More than one hundred Indian tribes in fifteen language groups inhabited the area of Washington, Oregon, Idaho, and Western Montana in the nineteenth century. This important work, the first composi...

Half-Sun on the Columbia

By Robert H. Ruby

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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.