Tom Clammer Books

Fight valiantly

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"There is a clear lack in the Church of England of a coherent and thought-through treatment of evil and the devil within the texts which the Church of England traditionally identifies as the reposi...

Reflections for Daily Prayer Advent 2024 to Christ the King 2025

By Tom Clammer, Kate Bruce, Justine Allain Chapman, Steven Croft, Maggi Dawn

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Crowning the Year

By Tom Clammer

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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.