John MacQuarrie Books

Macquarrie 'revisits' and expands his understanding of the other person of Jesus Christ. Critiques certain controversial theologies which overemphasise either Jesus' divinity or humanity. Explores...

Twentieth Century Religious Thought

By John MacQuarrie

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Mary for All Christians

By John MacQuarrie

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New directions in theology today

By John MacQuarrie

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Principles of Christian Theology

By John MacQuarrie

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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.