John Farndon Books

From Ptolemy s spheres to dark energy

By John Farndon

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1446 Phototips P

By David Hamilton

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What happens when

By John Farndon

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Illustrations with explanatory text describe such familiar everyday processes as generating electricity, producing a newspaper, handling sewage, and delivering flowers.

Hamlyn All Colour Book of the Body

By John Farndon

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Hamlyn encyclopedia of photography

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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.