Konrad Hammann Books

"Rudolf Bultmann was the giant of twentieth-century New Testament scholarship. His pioneering studies in biblical criticism shaped research on the composition of the gospels, and his call for demyt...

Bultmann Paket Konrad Hammann Rudolf Bultmann eine BiographieChristof Landmesser

By Christof Landmesser, Konrad Hammann

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Hermann Gunkel

By Konrad Hammann

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Rudolf Bultmann und seine Zeit

By Konrad Hammann

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Rudolf Bultmann eine Biographie

By Konrad Hammann

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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.