Roddy Mullin Books

Direct marketing

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"Direct marketing is widely acknowledged as one of the most popular and effective marketing communications tools. Marketing professionals, and those studying for marketing qualifications, need to h...

Value for Money Marketing

By Roddy Mullin

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Direct Marketing

By Roddy Mullin

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Sales Promotion

By Julian Cummins, Roddy Mullin

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Sales Promotion

By Julian Cummins, Roddy Mullin

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The Handbook of Field Marketing

By Roddy Mullin, Alison Williams

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Sales promotion

By Roddy Mullin

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Sales promotion

By Roddy Mullin

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Promotional Marketing

By Roddy Mullin

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Promotional Marketing

By Roddy Mullin

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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.