Obrien Books

Mary Lavelle
Mary Lavelle

By Obrien, Kate O Brien

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Dime Novels
Dime Novels

By Frank Obrien

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Genetic Maps Book 1 Viruses Genetic Maps Book 1 Genetic Maps Book 1
The golden age of Italian music
Connecticut Almanac
Connecticut Almanac

By Obrien

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Saints in the Making
Saints in the Making

By Felicity Obrien

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Mgmt Info Sys TB
Mgmt Info Sys TB

By O Brien

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Harlequin Bianca
Harlequin Bianca

By Obrien

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Constitutional Law and Politics
Solidarity first
Solidarity first

By Robert O Brien

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"Solidarity First examines the concept and practice of social cohesion in terms of its impact on, and significance for, workers in Canada. Contributors examine how social cohesion functions on mult...

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Related Articles from our Blog

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.

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