David Schultz Books

A short history of the United States Civil Service

By Robert Maranto

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The jurisprudential vision of Justice Antonin Scalia

By David A. Schultz

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When Antonin Scalia was appointed to the Supreme Court in 1986, conservatives hoped he would become the intellectual leader of President Reagan's judicial counterrevolution. In this first book-leng...

Money, politics, and campaign finance reform law in the states

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"Money, Politics, and Campaign Finance Reform Law in the States presents an exciting examination of campaign finance reform and the role of money in state politics through the 2000 elections. Writ...

American Government

By David Schultz

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American Government

By David Schultz

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American politics in the age of ignorance

By David A. Schultz

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State and local governments are often trumpeted as laboratories of democracy, capable of significant policy innovation and expertise. Yet the reality is that states more often than not repeatedly r...

Inventors of Ideas

By Donald Tannenbaum, David Schultz

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Money in American Politics

By David Schultz

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The Andromeda Galaxy and the Rise of Modern Astronomy

By David Schultz

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Property, power, and American democracy

By David A. Schultz

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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.