Jeffrey Allen Books

Mary Alice Operator Number 9

By Jeffery Allen

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The Killing of Jeremy Taylor

By Jeffrey R. Allen

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Popped off

By Jeffrey Allen

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For stay-at-home dad Deuce Winters, the cutthroat world of suburban kiddie sports leagues is unavoidable. In his small town of Rose Petal, Texas, Moises Huber is known as the King of Soccer. But it...

Seventh Thunder

By Jeffrey E Allen, Donna M Allen

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Marine claims handbook

By N. G. Hudson

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IPad for lawyers

By Jeffrey M. Allen

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Savor Nantucket

By Church Of St. Mary S Parishoners Frien

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Stay at Home Dead Stay at Home Mystery

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Technology solutions for today s lawyer

By Jeffrey M. Allen

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Are We There Yet

By Jeff Allen

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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.