J. R. R. Tolkien Books

The Hobbit

By J.R.R. Tolkien

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Sir Gawain and the Green Knight: with Pearl and Sir Orfeo: Unabridged

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This 14th-century poem, translated into modern English here by J.R.R. Tolkien, tells the story of a man who goes into a graveyard to mourn the death of his baby daughter, who he has lost like a pea...

Farmer Giles of Ham and Other Stories

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The Hobbit 3D: A three-dimensional picture book

By J.R.R. Tolkien

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Letters from Father Christmas

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Morgoth's Ring

By J.R.R. Tolkien

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The Tolkien Teaching Pack

By John Manninmon

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The Hobbit

By J.R.R. Tolkien

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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.