David Leffman Books

Top 10 Iceland

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"This handy Top 10 guide takes the work out of planning a trip to Iceland -- packed with great ideas, insider tips, and useful advice, it will lead you straight to the very best of Iceland"--Page [...

The Rough Guide to Iceland 2 Rough Guide Travel Guides

By David Leffman, James Proctor

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The Rough Guide to Australia 7 Rough Guide Travel Guides

By David Leffman, Margo Daly, Anne Dehne, Chris Scott

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The Rough Guide to China 4 Rough Guide Travel Guides

By Simon Foster, Simon Lewis, David Leffman, Jeremy Atiyah

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The Rough Guide to China 5 Rough Guide Travel Guides

By Simon Lewis, David Leffman

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The rough guide to Iceland

By David Leffman

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This guide to Iceland gives information on hotels, hostels and camping, and covers sites and stories of Viking sagas. There is advice on swimming in hot springs, climbing volcanoes, and tackling th...

The Rough guide to China

By David Leffman

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The sheer breadth of what you can experience in China and the speed of its transformation make it a destination impossible to ignore and essential to visit. From sophisticated cities such as Shangh...

The Rough Guide to Iceland

By David Leffman, James Proctor

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The Rough Guide to Australia Rough Guide Australia

By David Leffman, Margo Daly, Anne Dehne

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Australia

By David Leffman, Margo Daly, Anne Dehne, Chris Scott

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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.