George Armstrong Books

Six days from Sunday.

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In his last "free" days before the frightening prospect of going away to school, a Navajo boy's adventure helps him appreciate the old ways of his ancestors and approach without fear the new ways o...

Names and places in the Old and New Testament and Apocrypha

By George D. Armstrong

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The pelican mystery

By Ruth Hooker

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A resourceful brother and sister find adventure and mystery in the Florida Keys.

Soccer hero

By Mike Neigoff

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After Specs Conn organizes a junior high soccer team he has to decide if his ambition to play will hurt the team's ability to win.

Skunny Wundy

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Dieci Uomini E Donne Illustri Language Italian

By Carolina Donadio Lawson

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Hoch in Den Alpen

By Heinrich Wolff

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The earthshapers

By Karen Speerstra

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Portrays the daily life of the ancient Mound Builders in the northern Mississippi Valley through the eyes of young Yellow Moon.

The earthshapers

By Karen Speerstra

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Portrays the daily life of the ancient Mound Builders in the northern Mississippi Valley through the eyes of young Yellow Moon.

Mortal politics in eighteenth-century France

By George Armstrong Kelly

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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.