Alan Jacobs Books

THE NARNIAN The Life and Imagination of C. S. Lewis

By Alan Jacobs

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Original Sin

By Society For Promoting Christian Knowledge Great Britain Staff, Alan Jacobs

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Shield of Achilles

By W. H. Auden, Alan Jacobs

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The Book of Common Prayer Lives of Great Religious Books

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"While many of us are familiar with such famous words as, "Dearly beloved, we are gathered together here." or "Ashes to ashes, dust to dust," we may not know that they originated with The Book of C...

Book of Common Prayer

By Daren Magee, Alan Jacobs

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Shield of Achilles

By W. H. Auden, Alan Jacobs

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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.