Patrick O Meara Books

Globalization and the Challenges of a New Century

By Howard Carolee Mehlinger, Matthew Krain, Patrick O Meara

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Africa Fourth Edition

By John H. Hanson, James Delehanty, Jonathan Aden, Patrick O Meara, Maria Grosz Ngate

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Africa

By Maria Luise Grosz Ngate, Patrick O Meara, Hanson John H.

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Since the publication of the first edition in 1977, Africa has established itself as a leading resource for teaching, business, and scholarship. This fourth edition has been completely revised and...

Africa

By Phyllis M. Martin, Patrick O Meara

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K. F. Ryleev

By Patrick O Meara

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K. F. Ryleev

By Patrick O Meara

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Africa

By Phyllis M. Martin, Patrick O Meara

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Decembrist Pavel Pestel

By Patrick O Meara

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Russian Nobility in the Age of Alexander I

By Patrick O Meara

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K. F. Ryleev

By Patrick O Meara

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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.