William J. Quirk Books

Abandoned

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Do you consider yourself a member of the middle class? Eighty percent of Americans describe themselves in those terms; working-class citizens who are neither rich nor poor. Has the government addre...

Hiring handbook special report

By William J. Quirk

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The Hiring Handbook

By William J. Quirk

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Abandoned

By William J. Quirk

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Company Policy Manual

By William J. Quirk

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Company Policy Manual

By William J. Quirk, JoAnne S. Haffeman

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Judicial Dictatorship

By William J. Quirk, Randall Bridwell

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Courts and Congress

By William Quirk

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Judicial Dictatorship

By William J. Quirk, Randall Bridwell

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Judicial Dictatorship

By William J. Quirk, Randall Bridwell

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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.