Mark Alpert Books

"For centuries, they have lived among us. When they were discovered, they were called witches, vampires, or devils and sentenced to a quick death. They are human just like us, except for a rare gen...

The furies

By Mark Alpert

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Extinction

By Mark Alpert

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The omega theory a novel

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Omega Theory

By Mark Alpert

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Omega Theory

By Mark Alpert

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Untitled Novel 2

By Mark Alpert

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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.