Patrick Lennon Books

CORN DOLLS SIGNED DATED DOODLED WITH POSTCARD

By Patrick Lennon

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Steel witches

By Patrick Lennon

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Steel witches

By Patrick Lennon

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Tom Fletcher has left the police force. Working as a private investigator in Cambridge, Tom is dragged back into his own troubled family history by an enigmatic message from his missing father. Som...

Cut out

By Patrick Lennon

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Wolf Creek

By Patrick A. Lennon

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Revolution

By Patrick A Lennon

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Tall Tales

By Patrick A Lennon

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Kiss the Pilot

By Patrick Lennon

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Tale Spinning

By Patrick Lennon

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Brussels

By Ursula Wieser Benedetti, Maxime Schouppe, Laura Jones, Eric Hennaut, Martin McGarry, Wouter Meeus, Patrick Lennon

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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.