Roger Norum Books

London

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From the pomp of Westminster to the pop-ups of Dalston, London is Europe's most diverse city in every sense. Updated by local Londoners, the Pocket Rough Guide London covers both the headline sight...

Frommer s Norway 2009

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Frommer s Scandinavia

By Darwin Porter

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Describes points of interest in each region of Denmark, Norway, Sweden, and Finland, and recommends restaurants and hotels in all price ranges.

Norway

By Snorre Evensberget

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Eyewitness Travel Guides Norway

By Snorre Evensberget

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The rough guide to Japan

By Sophie Branscombe

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The Rough Guide to Denmark 1 Rough Guide Travel Guides

By Rough Guides

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The rough guide to Denmark

By Lone Mouritsen

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Anthropocene Ecologies

By Mary Mostafanezhad, Roger Norum

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Frommer s Norway

By Roger Norum

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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.