John Farndon Books

Encyclopedia

By John Farndon, DK Publishing

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Earth

By DK Publishing

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Collecting rock & crystals

By Steve Parker

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Introduces different kinds of rocks and mineral crystals, discussing how they are formed, how to identify them, and how to build a collection.

The Rock and Crystal Collection

By John Farndon, John Fardon

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How the Earth Works Eyewitness Science Guides

By John Farndon

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Photography Creative Techniques

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The Kodak Library of Creative Photography

By John Farndon, Jack Tresidder

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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.