Callaghan Books

Taming of the Shrew Henry IV Part 1 Romeo and Juliet
Way the Angel Spreads Her Wings
Black Queen Stories
Black Queen Stories

By Barry Callaghan

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Sociology and Nursing
Sociology and Nursing

By Callaghan

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I M Mgrl Odyssey Problem
Romeo and Juliet
Romeo and Juliet

By William Shakespeare

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Plains Miwok dictionary
The Retreat of Social Democracy Political Analysis
In search of social democracy
In search of social democracy

By

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British communism
British communism

By Callaghan John

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Wide-ranging and richly researched, this is the first sourcebook to reconstruct the tumultuous history of the Communist Party of Great Britain. Drawing together over one hundred and fifty documents...

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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.

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