Lois K. Geller Books

Response: The Complete Guide to Profitable Direct Marketing

By Lois K. Geller

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Response

By Lois K. Geller

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In Response!, Lois K. Geller, a leading expert in Direct Marketing offers all marketers, whether they work for small companies or large corporations, a strategy for creating and sustaining a profit...

Response

By Lois K. Geller

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Direct Marketing Techniques

By Lois Geller

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Customers for Keeps

By Lois K. Geller

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Response. Die unbegrenzten Moglichkeiten des Direktmarketing.

By Lois K. Geller

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Respuestas Una Guia Completa Del Marketing

By Lois K. Geller, Lois Geller

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Response

By Lois K. Geller

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Sold

By Lois K. Geller

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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.