Charles P. Korr Books

More Than Just a Game: Football v Apartheid

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This is the true account of how the political prisoners of South Africa's infamous Robben Island turned football into an active force in their struggle for freedom. Despite torture, regular beating...

More Than Just A Game: Football v Apartheid

By Charles P. Korr

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West Ham United

By Charles P. Korr

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West Ham United

By Charles P. Korr

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End of Baseball as We Knew It

By Bob Costas, Charles P. Korr

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The End of Baseball As We Knew It

By Charles P. Korr

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More than just a game

By Charles P. Korr

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Cromwell and the New Model Foreign Policy

By Charles P. Korr

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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.