John Hoopes Books

Quick View Guide to the Internet for Students of Anthropology Version 2.0

By John Hoopes, Jennifer Campbell, Michael Keene

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Lieutenant Sherman and La Dona of Monterey

By John Hoopes

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It is 1847: the celebrated Civil War General William Tecumseh Sherman is a mere lieutenant, serving as adjutant to the military governor of newly-conquered California, foremost prize of the recent...

Sonny and Valerian San Francisco Part 2

By John Hoopes

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Advances in Chemical Engineering

By John Hoopes

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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.