Iassen Ghiuselev Books

When the miserable and hungry orphan Oliver Twist dares to ask the master of the workhouse for some more food, he is forced to flee his wretched life and ends up alone in London. Innocent and vulne...

Lewis Carroll s Alice 2007 Calendar

By Iassen Ghiuselev

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Artus und Excalibur

By Angelika Lukesch

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Orpheus und Euridike.

By Sybil Grafin Schonfeldt, Iassen Ghiuselev

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O Can Dos Baskerville

By Eva Almazan Garcia, Iassen Ghiuselev, Arthur Conan Doyle

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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.