Sarah Quigley Books

After Robert

By Sarah Quigley

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Write

By Sarah Quigley

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Facing Fear Finding Courage

By Pat Quigley, Sarah Quigley

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The conductor

By Sarah Quigley

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June 1941: Nazi troops surround the city of Leningrad, planning to shell and starve its people into submission. The famous composer Shostakovich stays behind to defend his city. That winter the Par...

The Conductor

By Sarah Quigley

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Whale Song

By Sarah Quigley

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The Little Book of Courage

By Sarah Quigley, Marilyn Shroyer

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Shot

By Sarah Quigley

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Shot

By Sarah Quigley

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Fifty days

By Sarah Quigley

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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.