Ralf Gottschlich Books

Wilhelm Rudolph

By Rudolph Wilhelm

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By Ralf Gottschlich, Isabelle Bonanati

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Der Erste Weltkrieg im Spiegel expressiver Kunst

By Dietrich Schubert, Achim Gandras, Bernd Kuster, Claudia Schonjahn, Christiane Ladleif, Ralf Gottschlich, Monika Locken, Mareike Witkowski, Schneider Gerhard

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Das Kloster Santa Maria da Vitoria in Batalha und seine Stellung in der iberischen Sakralarchitektur des Spatmittelalters

By Ralf Gottschlich

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The Monastery of Santa Maria da Vitória in Batalha is without doubt one of the most important historic buildings in Portugal. It is also one of the few outstanding examples of a late gothic monasti...

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.