Dennis W. Johnson Books

Democracy for hire

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"During the nineteenth and early twentieth centuries, political campaigns were run by local political parties, volunteers, and friends of candidates; but as party loyalties among voters began to we...

Campaigning in the twenty-first century

By Dennis W. Johnson

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Campaigning for president 2008

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No place for amateurs

By Dennis W. Johnson

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Campaigning in the twenty first century

By Dennis W. Johnson

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Campaigning in the Twenty-First Century: A Whole New Ballgame?

By Dennis W. Johnson

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Campaigning for president 2008

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No Place for Amateurs

By Dennis Johnson, Dennis W. Johnson

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No Place for Amateurs

By Dennis Johnson

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Congress Online

By Dennis Johnson

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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.