Carol O Connell Books

Murdering the Magic Men

By Carol O Connell

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The Man Who Cast Two Shadows Kathleen Mallory Novels Audio

By Carol O Connell

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Find me

By Carol O Connell

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When a children's gravesite is found along Adams Streets, dozens of parents come seeking their missing children, some gone a decade or more, and Kathy Mallory, a feral child adopted off the street,...

Blind sight

By Carol O Connell

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"The thrilling new Mallory novel from the New York Times-bestselling author and one of the most acclaimed crime writers in America. The nun was dead. Her body lay on the lawn outside Gracie Mansion...

Find Me

By Carol O Connell

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Killing Critics

By Carol O Connell

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The Chalk Girl

By Carol O Connell

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O connell 32mxfl

By Carol O Connell

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Killing Critics Kathleen Mallory Novels

By Carol O Connell

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O connell Tie in 40mxf

By Carol O Connell

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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.