Jon T. Hoffman Books

Chesty

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Featured on the Commandant of the Marine Corps’ Reading List and the Chief of Naval Operation’s “Naval Power” Reading ListThe Marine Corps is known for its heroes, and Lieutenant General Lewis B. P...

Chesty

By Jon T. Hoffman

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"The Marine Corps is known for its heroes, and Lieutenant General Lewis B. Puller has long been considered the greatest of them all. His assignments and activities covered an extraordinary spectrum...

Silk Chutes and Hard Fighting

By Jon T. Hoffman

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Once a legend

By Jon T. Hoffman

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Once a Legend

By Jon T. Hoffman, Jon Hoffman

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The Panama Canal

By Jon T. Hoffman

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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.