David D. Clark Books

Designing an Internet

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Why the Internet was designed to be the way it is, and how it could be different, now and in the future.How do you design an internet? The architecture of the current Internet is the product of bas...

At the Nexus of Cybersecurity and Public Policy

By Developing A Cybersecurity Primer Leveraging Two Decades Of National Academies Work Committee, Clark David, Thomas Berson, Computer Science And Telecommunications Board, Herbert S. Lin

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At the Nexus of Cybersecurity and Public Policy

By Division On Engineering And Physical Sciences, Committee On Developing A Cybersecurity Primer Leveraging Two Decades Of National Academies Work, Computer Science And Telecommunications Board, National Research Council, Herbert S. Lin

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Exploring Speciation

By David D. Clark

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Exploring Speciation

By David D. Clark

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Internet Telephony

By David D. Clark, Lee W. McKnight, William Lehr

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Internet Telephony

By David D. Clark, Lee W. McKnight, William Lehr

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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.