David Ralph Johnson Books

Illegal Tender: Counterfeiting And The Secret Service In Nineteenth-Century America

By JOHNSON DAVID R, David R. Johnson, David Ralph Johnson

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In 1862 The New York Times Reported That Nearly 80 Percent Of American Currency In Circulation Was Counterfeit. In New York And Philadelphia Outlaw Engravers Worked By Day For The Banks That Issued...

2022 Saint Paul Almanac Volume 13

By Aria Dominguez, David Ralph Johnson, Marjorie Otto, Paul Bard, Lee Colin Thomas

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Grand View: A Young Man'S Trek To Love In Northern Minnesota

By David Johnson, David Ralph Johnson

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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.