John F. Cogan Books

The budget puzzle

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In the United States, the size and composition of the federal budget is arguably the most important single issue of the 1990's, yet most debates and commentaries on the subject are largely uninform...

The budget puzzle

By John F. Cogan

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Continuity and Change in House Elections

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Healthy wealthy and wise

By John F. Cogan

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Federal budget deficits

By John F. Cogan

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The congressional response to social security surpluses, 1935-1994

By John F. Cogan

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Family formation, labor market experience, and wages of married women

By John F. Cogan

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Conditional labor supply functions

By John F. Cogan

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Healthy Wealthy and Wise

By Daniel P. Kessler, John F. Cogan, R. Glenn Hubbard

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Energy and jobs

By John F. Cogan

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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.