Jeffrey M. Allen Books

Technology tips for seniors

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An easy-to-follow resource to help you become proficient using the many tools of the digital age in which we live ... this book "answers a wide variety of questions about modern technology and prov...

Technology tips for seniors

By Jeffrey Allen

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IPad for lawyers

By Jeffrey M. Allen

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Technology solutions for today s lawyer

By Jeffrey M. Allen

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Technology Tips for Lawyers and Business Professionals

By Jeffrey Allen, Ashley Hallene

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My Story... from Humble Beginnings to Professional Success

By Jeffrey M. Allen, James M. Durant III

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My Story... from Humble Beginnings to Professional Success

By Jeffrey M. Allen, James M. Durant III

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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.