Glen M. Leonard Books

Massacre at Mountain Meadows: An American Tragedy

By Glen M. Leonard, Ronald W. Walker, Richard E. Turley

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Massacre at Mountain Meadows offers the most thoroughly researched account of the massacre ever written. Drawn from documents previously not available to scholars and a careful re-reading of tradit...

Massacre at Mountain Meadows

By Glen M. Leonard, Ronald W. Walker, Richard E. Turley

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The story of the Latter-day Saints

By James B. Allen

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A history of Davis County

By Glen M. Leonard

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Nauvoo

By Glen M. Leonard

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Massacre at Mountain Meadows

By Glen M. Leonard, Ronald W. Walker, Richard E. Turley

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Massacre at Mountain Meadows

By Glen M. Leonard, Ronald W. Walker, Turley Richard E. Jr.

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Artifacts Speak

By Glen M. Leonard

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Artifacts Speak

By Glen M. Leonard

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Artifacts Speak

By Glen M. Leonard

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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.