Barbara Hofmann Johnson Books

Wahlverwandtschaften

By Sabine Elsa Muller, Petra Oelschlagel, Barbara Hofmann Johnson

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Albrecht Fuchs Album

By Barbara Hofmann Johnson

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Albrecht Fuchs is considered one of the most significant contemporary portrait photographers. His work focuses on images of artists, art agents, collectors, publishers and other personalities who e...

Alwin Lay

By Alwin Lay, Barbara Hofmann Johnson

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Martina Sauter

By Martina Sauter, Barbara Hofmann Johnson

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Laurenz Berges

By Barbara Hofmann Johnson

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Ute Bartel

By Barbara Hofmann 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.