Norma Jean Lutz Books

Cotton Mather

By Norma Jean Lutz

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Cotton Mather

By Norma Jean Lutz

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Oklahoma summer

By Norma Jean Lutz

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During Marcia's summer at her grandparents' ranch, she not only trains for a horse show but learns a lot about her personal relationships.

Battling the Klan

By Norma Jean Lutz

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In 1924, Addy Moe and her cousin, Harry Allerton, find it hard to believe, but many of their friends accept the hateful views of the Ku Klux Klan. When Addy shows kindness to a Jewish immigrant nam...

Rumblings of war

By Norma Jean Lutz

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Daria Solves a Mystery

By Norma Jean Lutz

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Tulsa Tempest

By Norma Jean Lutz

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Frederick Douglass

By Norma Jean Lutz

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Frederick Douglass

By Norma Jean Lutz, Schlesinger Arthur M. Jr.

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Harriet Tubman: Leader of the Underground Railroad

By Norma Jean Lutz

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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.