David Conroy Books

Out of the Nightmare

By David L. Conroy

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Archway of Tears

By David Conroy

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Although it includes a fictional plot, Archway of Tears includes many situations based on factual evidence. It portrays the position of women in the post 1914-18 War period, and the efforts of the...

The Scarlet Pimpernel VHS

By David Conroy, William Bast, Baroness Emmuska Orczy, Peter Tanner, Dennis C. Lewiston, Mark Shelmerdine

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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.