Gareth Roberts Books

The Mirror of Alchemy

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In this accessible and authoritative study, Gareth Roberts provides an introduction to the history, concepts, terms and presuppositions of western European alchemy, as well as discussing the works...

The Mirror of Alchemy

By Gareth Roberts

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Recruitment and selection

By G. G. Roberts

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Witchcraft in Early Modern Scotland

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To Be a Somebody Cracker

By Gareth Roberts

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Revenge of the Slitheen

By Rupert Laight

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Doctor Who I Am a Dalek Doctor Who Quick Reads Book 1

By Gareth Roberts

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Doctor Who The English Way of Death The History Collection Doctor Who History Collection

By Gareth Roberts

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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.