James Simon Books

Rome, 750 B.C.-500 A.D.

By James Simon

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A brief overview of the development and eventual demise of the Roman Empire.

Winning Streak

By James C. Simon, James Simon

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My friend whale

By James Simon

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A child's enjoyment of a whale in the sea near his home ceases when the whale is suddenly never seen again. A final page emphasizes the necessity of preserving whales.

Ancient Rome

By James Simon

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A photo essay documenting ancient Rome and the people who lived there as revealed through the many artifacts they left behind, including shields, swords, tools, toys, cosmetics, and jewelry.

Britain and the Celtic Iron Age

By James Simon

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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.