Kerry Christiani Books

Frommer s Marrakech Day by Day Frommer s Day by Day Pocket

By Kerry Christiani

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Lisbon

By Kerry Christiani

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Pocket Porto

By Kerry Christiani

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Spain Portugal s best trips

By Regis St. Louis, Andy Symington, Anthony Ham, Kerry Christiani, Brendan Sainsbury, Josephine Quintero, Noble John, Isabella Noble

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Discover the freedom of open roads while touring Spain and Portugal with Lonely Planet Spain and Portugal's Best Trips, your passport to up-to-date advice on uniquely encountering Spain and Portuga...

Germany Austria Switzerland s best trips

By Benedict Walker, Catherine Le Nevez, Ryan Ver Berkmoes, Kerry Christiani, Tom Masters, Nicola Williams, Andrea Schulte Peevers, Marc Di Duca, Sally O Brien

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Discover the freedom of open roads while touring with Lonely Planet Germany, Austria and Switzerland's Best Trips, your passport to uniquely encountering this region by car. Featuring 30 amazing ro...

Sardinia

By Kerry Christiani

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Mallorca

By Kerry Christiani

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Munich Bavaria the Black Forest

By Kerry Christiani

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Lisbon

By Kerry Christiani

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Pocket Lisbon

By Kerry Christiani

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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.