Gaylord Dold Books

Framed for rape and murder, rich lawyer Jack Darwin of San Francisco accepts fellow attorney David Avila's offer to defend him. Little does he realize this is a conspiracy by Avila, who is having a...

Samedi's knapsack

By Gaylord Dold

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Six white horses

By Gaylord Dold

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Hot Summer Cold Murder Mitch Roberts Mystery

By Gaylord Dold

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Snake Eyes

By Gaylord Dold

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Cold Cash

By Gaylord Dold

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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.