Mark Zuehlke Books

The Gallant Cause Canadians in the Spanish Civil War 1936 1939

By Mark Zuehlke

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For Honour's Sake

By Mark Zuehlke

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In the tradition of Margaret MacMillan’s Paris 1919 comes a new consideration of Canada’s most famous war and the Treaty of Ghent that unsatisfactorily concluded it, from one of this co...

Canadian Military Atlas

By Mark Zuehlke, C. Stuart Daniel

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Breakout From Juno First Canadian Army and the Normandy Campaign July 4 August 21 1944 Canadian Battle

By Mark Zuehlke

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On to Victory The Canadian Liberation of the Netherlands March 23 May 5 1945 Canadian Battle Book 8

By Mark Zuehlke

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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.