David J. Shepherd Books

"Between the advent of motion pictures in the 1890s and the close of the 'silent' era at the end of the 1920s, many of the longest, most expensive and most watched films on both sides of the Atlant...

Bible on Silent Film

By David J. Shepherd

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Ezra and Nehemiah

By Christopher J. H. Wright, David J. Shepherd

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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.