Christian Welzbacher Books

A fresh interpretation of Jeremy Bentham, finding that his “radical foolery” embodied a social ethics that was revolutionary for its time.Jeremy Bentham (1748–1832) is best remembered today as the...

Radical Fool of Capitalism

By Elisabeth Lauffer, Christian Welzbacher

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Nachkriegsmoderne in Deutschland

By Michael Braum, Christian Welzbacher

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Neue Frankfurt

By Christian Welzbacher

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Europas Moscheen

By Christian Welzbacher

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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.