Ken Hills Books

Headlines of World War II

By JOHN BERRY ILLUSTRATOR KEN HILLS

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Crusades

By Ken Hills

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Surveys the origins and events of the series of wars called crusades that lasted from 1095 to 1291. Suggested level: intermediate, junior secondary.

Vietnam war

By Ken Hills

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Surveys the history of the conflict in Vietnam, from French colonial times to the union of North and South Vietnam as a single communist nation after the withdrawal of American troops.

World War II

By Ken Hills, John Berry

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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.

Ken Hills Books

1940s

1960s

1940s Take Ten Years

World War I

Headlines of World War II

Crusades

Vietnam war

World War 1

World War II

Crusades

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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