Johanna Klier Books

Der Ottensener Werkhof 1888 2020

By Bodo Weichert, Antje Mittelberg, Jill Addo

Average: 0.00, 0 Ratings

Die Grosse Bergstrasse 1950 2017

By Johanna Klier, Sylvia Necker

Average: 0.00, 0 Ratings

Die Neue Grosse Bergstrasse in Hamburg- Altona ist Westdeutschlands erste autofreie Einkaufszone. Bis heute ist sie geprägt durch eine moderne Nachkriegsarchitektur, aber von ihrem einst glanzvolle...

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.