James S. Romm Books

Herodotus

By James S. Romm

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The Edges of the Earth in Ancient Thought

By James S. Romm

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The edges of the earth in ancient thought

By James S. Romm

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The Sacred Band: Three Hundred Theban Lovers Fighting To Save Greek Freedom

By James S. Romm, James Romm

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From classicist James Romm comes a "striking...fascinating" ( Booklist ) deep dive into the last decades of ancient Greek freedom leading up to Alexander the Great's destruction of Thebes—and the s...

How to Keep Your Cool

By James S. Romm, Seneca, P.J. Ochlan

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How to Die

By James S. Romm, Seneca, P.J. Ochlan

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The Age of Caesar

By Plutarch, Michael Page, James S. Romm, Pamela Mensch

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Demetrius: Sacker Of Cities

By James S. Romm, James Romm

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A portrait of one of the ancient world’s first political celebrities, who veered from failure to success and back again “This colorful biography of Demetrius . . . explores his rich inner life and...

Herodotus

By James Romm

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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.