Angus Mackay Books

The History of the Province of Cat

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This substantial volume is filled with over 140 maps and commentaries detailing the whole of the medieval period from the latter days of Rome through to the beginnings of the early modern world. Ea...

Atlas of Medieval Europe Atlas

By Angus Mackay

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Donald Morrison, the Canadian outlaw

By Mackay Angus

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By trench and trail in song and story

By Mackay Angus

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The book of Mackay

By Mackay Angus

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Preparing land for grain-crops in Saskatchewan

By Angus Mackay

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Society, economy and religion in late medieval Castile

By Angus Mackay, MacKay Angus

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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.