Joseph T. Sinclair Books

Thin Clients Clearly Explained

By Joseph T. Sinclair, Michael Merkow

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Typography on the Web

By Joseph T. Sinclair

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Creating cool Web databases

By Joseph T. Sinclair

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EBay inventory the smart way

By Joseph T. Sinclair

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EBay business the smart way

By Joseph T. Sinclair

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Provides advice on selling merchandise on eBay, covering such topics as startup, building inventory, creating a Website, shipping, billing, and marketing products.

Ebay the Smart Way

By Joseph T. Sinclair

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EBay motors the smart way

By Joseph T. Sinclair

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EBay business the smart way

By Joseph T. Sinclair

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Building your eBay traffic the smart way

By Joseph T. Sinclair

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EBay the smart way

By Joseph T. Sinclair

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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.