Steve Willard Books

Harm. New California Poetry

By Steve Willard

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Harm. New California Poetry

By Steve Willard

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San Diego Police Department CA

By Steve Willard

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San Diego Police case files

By Steve Willard

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"The Images of America series celebrates the history of neighborhoods, towns, and cities across the country. Using archival photographs, each title presents the distinctive stories from the past th...

The Hub Shootout

By John Culea, Bob Lampert, Patti Culea, Steve Willard, Terry Jensen, Jack Cavanaugh

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Harm

By Steve Willard

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Harm

By Steve Willard

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Deadly San Diego

By Steve Willard

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San Diego Police

By Steve Willard, Ed LaVale

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San Diego Murder and Mayhem

By Steve Willard

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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.