Douglas J. Savage Books

Prison camps in the Civil War Douglas J. Savage.

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Describes the situation of prisoners in the Civil War, the 150 Federal and Confederate prison camps where they were held, and their care.

Ironclads and blockades in the Civil War

By Douglas Savage

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Describes how the United States Navy was expanded and improved during the Civil War and how ironclads and other armored vessels were used in various military operations.

The Civil War in the West

By Douglas Savage

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The soldier's life in the Civil War

By Douglas Savage

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Untold History of the Civil War Set Untold History of the Civil War

By Douglas J. Savage, Victor Brooks, Albert A. Nofi

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Rangers, jayhawkers, and bushwackers in the Civil War

By Douglas Savage

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Women in the Civil War

By Douglas Savage

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Civil War medicine

By Douglas Savage

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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.