John Spencer Books

Pluies de créatures, maisons hantées, esprits, combustions spontanées, nombre de ces phénomènes ont été décrits dans le passé, et ils continuent à se produire aujourd'hui. Certains humains ont des...

Donde esta el patito

By Equipo Susaeta

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Evidence Concentrate

By John Spencer, Maureen Spencer

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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.