Mackay James A. Books

The complete guide to stamps stamp collecting

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Introduces philately or stamp collecting, including its history, illustrations of stamps from around the world, and the growth of "Cinderellas," stamps once overlooked but now considered collectibles.

In my end is my beginning

By Mackay James A.

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Coins

By Mackay James A., James A. Mackay

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The Dictionary of Sculptors in Bronze

By Mackay James A., James A. MacKay

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R.B.

By Mackay James A., James MacKay

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Vagabond of Verse

By Mackay James A., James A. MacKay

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Allan Pinkerton

By Mackay James A.

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Vagabond of Verse

By Mackay James A., James A. MacKay

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Michael Collins

By Mackay James A., James Mackay

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Silver

By Mackay James A., James MacKay

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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.