Irwin M. Stelzer Books

Lectures on Regulatory Competition Policy Occasional Paper 120

By Irwin M. Stelzer

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Selected antitrust cases

By Irwin M. Stelzer

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Selected Antitrust Cases

By Irwin M. Stelzer

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The antitrust laws

By John H. Shenefield

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The antitrust laws

By John H. Shenefield

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This invaluable guide is designed to give an understanding of what the antitrust laws are to everyone who needs it. To corporate counsel, this primer offers useful explanations for developing antit...

The antitrust laws

By John H. Shenefield

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The Department of Energy

By Irwin Stelzer, Robert Patton

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Making Environmental Policy

By Paul R. Portney, Irwin M. Stelzer

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The antitrust laws

By John H. Shenefield

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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.