David Leffman Books

Top 10 Iceland

By DK Publishing

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The rough guide to Malaysia Singapore and Brunei

By David Leffman

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"The Rough Guide to Malaysia, Singapore and Brunei" is the ultimate guide to these three exciting Southeast Asian destinations, covering all their attractions, from amazing national parks and histo...

DK Eyewitness Top 10 Travel Guide: Iceland

By DK

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The Rough Guide To China

By Andrew Commins

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Iceland

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The rough guide to Iceland

By David Leffman

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The Rough Guide to Iceland is the ultimate travel guide to this fascinating island and its capital Reykjavik, with clear maps and detailed coverage of all the best attractions. Discover Iceland's h...

Top 10 Iceland Eyewitness Top 10 Travel Guide

By DK Travel

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Top 10 Iceland

By David Leffman

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"Dozens of Top 10 lists --- from the Top 10 hiking trails to the Top 10 museums, bars and clubs, golf courses, and geysers"--Page 4 of cover.

Top 10 Iceland

By David Leffman

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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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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.