Rudolf Abraham Books

Torres del Paine

By Rudolf Abraham

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Walking in Croatia

By Rudolf Abraham

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The islands of Croatia

By Rudolf Abraham

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The mountains of Montenegro

By Rudolf Abraham

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The peaks of the Balkans trail

By Rudolf Abraham

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A guidebook to the Peaks of the Balkans Trail, a circular route through the wild and rugged borderlands of Montenegro, Albania and Kosovo. Launched in 2013 to promote sustainable local tourism and...

St Oswald s Way and St Cuthbert s Way

By Rudolf Abraham

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Enzyme

By Rudolf Abraham

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St Oswald s Way and St Cuthbert s Way

By Rudolf Abraham

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St Oswald s Way and St Cuthbert s Way

By Rudolf Abraham

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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.