Lydia Konnegen Books

Dom zu Aachen

By Anke Naujokat, Lydia Konnegen, Frank Pohle

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Der karolingische Ursprungsbau des Aachener Doms hat in 1200 Jahren Geschichte zahlreiche Erweiterungen und Anbauten erhalten. Sie lassen das Bauwerk heute als vielschichtiges Ensemble höchst unter...

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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.

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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.