David Boyum Books

Drug addiction and drug policy

By David Boyum, Mark Kleiman, Peter Reuter, Jonathan Caulkins, Mark H. Moore, Sally Satel, Gene M. Heyman, George E. Vaillant

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What the Numbers Say

By David Boyum, Derrick Niederman

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An Analytic Assessment of US Drug Policy Aei Evaluative Studies

By David Boyum

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What the Numbers Say

By David Boyum, Derrick Niederman

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Our society is churning out more numbers than ever before, whether in the form of spreadsheets, brokerage statements, survey results, or just the numbers on the sports pages. Unfortunately, people...

What the Numbers Say

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A decade ago, computer scientist Douglas Hofstadter coined the term innumeracy, which aptly described the widespread ailment of poor quantitative thinking in American society. So, in What the Numb...

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.