Robbin Lee Zeff Books

The nonprofit guide to the Internet

By Robbin Zeff, Robbin Lee Zeff

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Advertising on the Internet

By Brad Aronson, Robbin Zeff

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Advertising on the Internet, 2nd Edition

By Robbin Zeff, Robbin Lee Zeff

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Environmental action groups

By Robbin Lee Zeff

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Discusses the history of environmentalism in the United States, including background on such groups as the Sierra Club, Greenpeace, the Nature Conservancy, Environmental Action, and a variety of an...

Environmental action groups

By Robbin Lee Zeff

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Advertising on the Internet

By Bradley Aronson, Robbin Lee Zeff

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Web Manual of Style

By Robbin Lee Zeff

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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.