Harry Spiller Books

Prisoners of Nazis

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They fought on the beaches of Normandy and in the Forest of Ardennes. They parachuted from burning planes and slogged past corpses half-buried in mud. But they came to find their greatest battle to...

American POWs in Korea

By Spillier Harry

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More then 7,000 Americans were captured during the Korean War. In North Korean prison camps, nearly 40 percent of them died - murdered, frozen, or starved. Through compelling personal interviews, t...

Pearl Harbor Survivors

By Harry Spiller

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"On December 7, 1941, Japan waged a surprise attack on the United States Naval Base at Pearl Harbor. It was a major victory for the Japanese Navy, which in less than two hours destroyed 188 America...

Veterans of Iraq and Afghanistan

By Harry Spiller

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" This collection of stories of American men and women who served in Iraq and Afghanistan reveals their personal experiences as military combat personnel. Their stories are told through interviews,...

Death Angel

By Harry Spiller

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Scars of Vietnam

By Harry Spiller

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Death angel

By Harry Spiller

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Murder in the heartland

By Harry Spiller

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Murder in the Heartland

By Harry Spiller

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Murder in the Heartland Book 3

By Harry L. Spiller

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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.