Hope L. Killcoyne Books

In the hands of the enemy

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Lost in the woods near Plymouth Colony, fourteen-year-old John, a member of the trouble-making Billington family that accompanied the Pilgrims on their Mayflower voyage in 1620, receives shelter an...

Ambush in the wilderness

By Kris Hemphill

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In 1755, after the death of his father, fifteen-year-old Patrick Egan and his uncle accompany the military force of aide-de-camp George Washington and British General Braddock as it journeys to fig...

Great authors of popular fiction

By Hope L. Killcoyne

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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.