Keith Gregson Books

Sporting ancestors

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"Sport, in its many forms, is an important part of British heritage and our family histories are littered with amateur and professional sporting references. As people moved from country to town, sp...

Understanding mathematics

By K. Gregson

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Keith Gregson's tour of mathematics uses ample examples from the world around us and worked problems to teach the topics that non-mathematicians often struggle with. He explains the fundamentals be...

Corvan

By Keith Gregson

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Tracing your Northern ancestors

By Keith Gregson

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Nelson s navy 1793 1815

By Keith Gregson

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Kids Joke Book

By Keith Gregson

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Understanding Mathematics

By Keith Gregson

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Understanding mathematics

By Keith Gregson

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Sporting Ancestors

By Keith Gregson

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Sporting Ancestors

By Keith Gregson

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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.