John Connolly Books

The Whisperers: A Charlie Parker Thriller: 9

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The border between Maine and Canada is porous. Anything can be smuggled across it: drugs, cash, weapons, people. Now a group of disenchanted former soldiers has begun its own smuggling operation, a...

The Whisperers: A Charlie Parker Thriller: 9

By John Connolly

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The Gates: A Samuel Johnson Adventure: 1

By John Connolly

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The Gates

By John Connolly

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The Voices of Wittgenstein

By John Connolly, Ludwig Wittgenstein, Michael Mackert, Gordon Baker, Friederich Waismann, Friedrich Waismann, Vasilis Politis

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The Unquiet

By John Connolly

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John Connolly, plaintiff vs. Julia Woolrich, defendant and Thomas R. Johnson, et al., executors and defendants par reprise d'instance

By John Connolly

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A narrative of the transactions, imprisonment, and sufferings of John Connolly

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A narrative of the transactions, imprisonment, and sufferings, of John Connolly, an American loyalist and lieutenant-colonel in His Majesty's service

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Every Dead Thing: A Charlie Parker Thriller

By John Connolly

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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.