Todd Obolsky Books

The Rough Guide to the USA is your authoritative state-by-state guidebook to this vast and fascinating country, whether you want to visit Mardi Gras in New Orleans, travel through New England in th...

The rough guide to Belize with Tikal Flores

By Todd Obolsky, Annelise Sorensen

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"Belize may look small on the map, but zoom in closer to discover a land of big attractions. A vast balanket of jungle hides tall Maya pyramids and jaguar lairs, while the Americas' longest barrier...

The Rough Guide to Peru

By Rough Guides

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The Rough Guide to New England 3

By Rough Guides

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The Rough Guide to Florida 6 Rough Guide Travel Guides

By Mark Ellwood, Todd Obolsky, Ross Velton

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The Rough Guide to New England 4 Rough Guide Travel Guides

By S. E. Kramer, Ken Derry, Sarah Hull, Todd Obolsky, Emma Lozman

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Stefan Loose Reisefuhrer USA Der Westen

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Hedonist s Guide to Miami

By Todd Obolsky

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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.