Gerard Donovan Books

Julius Winsome, la cinquantaine, vit seul avec son chien Hobbes, dans un chalet isolé au coeur de la forêt du Maine. S'il possède un fusil légué par son père, qui le tenait lui-même de son grand-pè...

Ein bitterkalter Nachmittag

By Gerard Donovan

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Winter in Maine

By Gerard Donovan

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Morgenschwimmer

By Gerard Donovan

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El Telescopio de Schopenhauer

By Gerard Donovan

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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.