Ellen Butler Books

100 Stunden Deutschland

By Peter Hartling

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The Brass Compass: A Novel

By Ellen Butler, Knupp

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~ Inspired by True Events ~ A beautiful American spy flees into the night. On her own, she must live by her wits to evade capture and make it to the safety of the Allied forces.Lily Saint James gre...

Brass Compass

By Ellen Butler, Knupp

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Fatal Legislation

By Ellen Butler

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Heart of Design

By Ellen Butler

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Heart of Design

By Ellen Butler

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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.