Christoph Hackelsberger Books

Beton Stein der Weisen

By Christoph Hackelsberger

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Hundert Jahre Deutsche Wohnmisere und Kein Ende

By Christoph Hackelsberger

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Christoph Hackelsberger

By Christoph Hackelsberger, Min Mi Hackelsberger, Nina Hackelsberger, Roman Hackelsberger

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Born in Freiburg in 1931, architect Christoph Hackelsberger is known above all for the restoration of historical buildings and the modernisation of existing buildings. But he also worked successful...

Hundert Jahre deutsche Wohnmisere, und kein Ende?

By Christoph Hackelsberger

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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.