John M. Roberts Books

The building site

By John Mack Roberts

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Buckeye Schoolmaster

By J. Merton England

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Modern Greece A Civilization on the Periphery Nations of the Modern World Europe

By John M. Roberts, Keith R. Legg

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This clear, balanced account explores the dilemma of Greece, the fount of European civilization. Despite its classical past and EU membership, Greece has been unable to escape the limbo of being "n...

Bloodsucking witchcraft

By Hugo G. Nutini

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Buckeye schoolmaster

By Roberts John M.

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The journals and diaries of John M. Roberts provide an intimate view of the life and thoughts of a young schoolmaster, miller, itinerant bookseller, and farmer in central Ohio in a time of rising s...

Buckeye schoolmaster

By Roberts John M.

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Modern history

By John Morris Roberts

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Modern history

By John Morris Roberts

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Escape

By John M. Roberts, Roberts John M.

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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.