Darwin Porter Books

Frommer s England 2010

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A comprehensive travel guide to England and Wales, with detailed maps and information on hotels and restaurants, shopping and nightlife, and other interesting sights.

France 2010

By Darwin Porter

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Spain 2010

By Danforth Prince

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Completely updated each year, "Frommer's Spain" features gorgeous full-color photos of everything from the Balearic beaches to the cosmopolitan capitals. The authors guide visitors through the 17 s...

Germany 2010

By Danforth Prince

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Dominican Republic

By Darwin Porter

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Portugal

By Darwin Porter

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Frommer s Switzerland

By Darwin Porter

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Offering the latest, savviest trip-planning advice--from saving money on airfares to renting a cell phone abroad to the latest advice on sustainable travel-to help readers make the most of their ti...

Frommer s Bahamas 2011

By Darwin Porter

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This travel guide to the Bahamas includes detailed maps; exact prices, directions, opening hours,and other practical information; candid reviews of hotels and restaurants,plus sights, shopping, and...

Frommer s Paris 2011

By Darwin Porter

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A guide to travel in Paris that covers history and culture, attractions, nightlife, shopping, lodgings and restaurants, trip planning, and transportation and provides maps, three walking tours, day...

Frommer s Caribbean 2011

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.