Ellen Brown Books

The alternative pharmacy

By Lynne Paige Walker

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The Colonial Cook Colonial People

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Master Kierkegaard

By Ellen Brown

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Master Kierkegaard is a diary kept by a fictional servant in the house of Søren Kierkegaard. The strong-willed but faithful Magda, a well-educated and "fallen" woman from Berlin, considers herself...

Breezing through the change

By Ellen Hodgson Brown

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Menopause and estrogen

By Ellen Hodgson Brown

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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.