Darwin Porter Books

Frommer s Paris 2006

By Darwin Porter

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Frommer s Bahamas 2006

By Darwin Porter

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Frommer s Spain 2006

By Darwin Porter

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Frommer s Bermuda 2006

By Darwin Porter

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Frommer s Virgin Islands

By Darwin Porter

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Frommer s England 2006

By Darwin Porter

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Frommer s Portable Cayman Islands

By Darwin Porter

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Experience a place the way the locals do. Enjoy the best it has to offer. And avoid tourist traps. At Frommer’s, we use 150 outspoken travel experts around the world to help you make the right choi...

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.