Alan Calder Books

Nine steps to success

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Completely up to date with ISO27001:2013, this is the new edition of the original no-nonsense guide to successful ISO27001 certification. Ideal for anyone tackling ISO27001 for the first time, Nine...

Nueve pasos para el exito Una vision de conjunto para la aplicacion de la ISO 27001

By Alan Calder

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James Maclaren, arts and crafts pioneer

By ALAN CALDER

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IT Governance

By Alan P Calder

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The Case for ISO 27001

By Alan Calder

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The Case for ISO 27001

By Alan P Calder

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Information Security Risk Management for ISO27001 ISO17799

By Alan Calder, Steve G Watkins

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Business Continuity and BS25999

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Information Security Based on ISO 27001 ISO 17799

By Alan Calder

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Implementing Information Security Based on ISO 27001 and ISO 17799

By Alan Calder

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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.