Julia McDonnell Books

Sitting Bull, the well-known Native American chief, united the Lakota Sioux in the northern Great Plains and led a mighty resistance of tribes who refused to be placed on reservations. This struggl...

Sitting Bull in his own words

By Julia McDonnell

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The Legend of Robin Hood

By Julia McDonnell

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Recounts the stories of the outlaw and his friends who fought injustice and helped the poor in medieval England, explains the historical background, and discusses their role in films and later cult...

The Legend of Robin Hood

By Julia McDonnell

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The Legend of Robin Hood

By Julia McDonnell

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How Precious Metals Form

By Julia McDonnell

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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.