John Treadwell Nichols Books

American blood

By John Treadwell Nichols

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Conjugal bliss

By John Treadwell Nichols

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Roger and Zelda were lovers. Best friends. Ardent, fun-loving, passionate, they were intellectual and sexual soul mates, a perfect match. And then they got married. How is it that a little piece of...

The Milagro beanfield war

By John Treadwell Nichols

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It was a soft, early spring morning with the mist still clinging to the mountain and the blackbirds just starting to swoop low over the alfalfa fields when Jo Mondragon - thirty-six with not much t...

The Nirvana Blues

By John Treadwell Nichols, John Nichols

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The Milagro Beanfield War

By John Treadwell Nichols, John Nichols

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The voice of the butterfly

By John Treadwell Nichols

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"Charley McFarland is an aging '60s radical and a continuing advocate of losing political battles. When a proposed local highway bypass threatens the home of the exquisitely obscure Rocky Mountain...

The Voice of the Butterfly

By John Nichols

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The Empanada Brotherhood

By John Nichols

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Conjugal Bliss

By John Nichols

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Biographical and literary anecdotes of William Bowyer.

By John Treadwell Nichols

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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.