Patricia Ann Terry Books

Song of Roland

By Patricia Ann Terry

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Poems of the Vikings: The Elder Edda

By Patricia Ann Terry

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The finding of the Grail

By Patricia Ann Terry

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"This retelling of the medieval Grail legend presents a unified version of the hero Perceval's quest. Illustrated with 34 miniatures from 13th- and 14th-century manuscripts, it offers a concise and...

South of Iquitos

By Patricia Ann Terry

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Words of silence

By Patricia Ann Terry

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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.