Glen Jeansonne Books

A Guide to the history of Louisiana

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Transformation and Reaction: America, 1921-1945

By Glen Jeansonne

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Messiah of the Masses: Huey P. Long and the Great Depression

By Glen Jeansonne

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Women of the far right

By Glen Jeansonne

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The majority of American women supported the Allied cause during World War II and made sacrifices on the home front to benefit the war effort. But U.S. intervention was opposed by a movement led by...

Women of the Far Right: The Mothers' Movement and World War II

By Glen Jeansonne

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The life of Herbert Hoover

By Glen Jeansonne

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This is the first definitive study of the presidency of America's least understood, most neglected and most under-appreciated Chief Executive. Born in a Quaker hamlet in Iowa, orphaned at nine, Her...

A Time of Paradox

By Glen Jeansonne

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A Time of Paradox

By Glen Jeansonne

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A Time of Paradox

By Glen Jeansonne

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Gerald L.K. Smith, minister of hate

By Glen Jeansonne

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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.