Darwin Porter Books

Frommer s Bahamas 2012

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A guide to visiting the Bahamas that provides reviews of hotels, restaurants, sights, shopping, and nightlife, along with practical information, insider tips, suggested itineraries and walking tour...

Frommer s Caribbean

By Christina Colo N

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Presents guidance and tools for visitors to the Caribbean, including trip planning information, lodging and dining suggestions for different budgets, and details on history, culture, and things to...

Cayman Islands

By Darwin Porter

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Frommer s Portugal

By Darwin Porter

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Insider advice on avoiding the crowds as you explore some of Portugal's greatest gems, from Lisbon's Alfama to the beaches of the Algarve, and from the Pal cio Nacional de Sintra in Sintra to the Q...

Frommer's Italy 2012

By Darwin Porter

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Virgin Islands

By Darwin Porter

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Cayman Islands

By Darwin Porter

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Frommer s Bahamas

By Darwin Porter

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Provides information on accommodations, transportation, restaurants, shopping, sights, beaches, and sports activities.

Frommer s Bermuda

By Darwin Porter

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A comprehensive guide to visiting Bermuda that provides information on accommodations, restaurants, beaches, activities, sights, shopping, and nightlife, and offers advice on trip planning as well...

Butterflies in Heat

By Darwin Porter

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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.