Andrew L. Johns Books

The Cold War at Home and Abroad

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Tortured

By Andrew L. JOHNS

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Vietnam'S Second Front: Domestic Politics, The Republican Party, And The War

By Andrew L. Johns

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the Vietnam War Has Been Analyzed, Dissected, And Debated From Multiple Perspectives For Decades, But Domestic Considerations  Such As Partisan Politics And Election-year Maneuvering  A...

Vietnam'S Second Front: Domestic Politics, The Republican Party, And The War

By Andrew L. Johns, Andrew L. Johns Ph.D.

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Andrew Johns argues that recent scholars of the Vietnam War have grossly underestimated the importance of partisan politics, election-year maneuvering, and domestic political culture in their under...

A Companion To Ronald Reagan

By Andrew L. Johns

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A Companion To Ronald Reagan

By Andrew L. Johns

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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.