David Oliver Relin Books

Three Cups of Tea

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The astonishing, uplifting story of a real-life Indiana Jones and his humanitarian campaign to use education to combat terrorism in the Taliban’s backyardAnyone who despairs of the individual’s pow...

Three Cups of Tea, One Man's Extraordinary Journey to Promote Peace, One School at a Time,

By Greg Mortenson

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Tres tazas de te: La lucha de un hombre para promover la paz--escuela a escuela

By Greg Mortenson

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Three cups of tea

By Greg Mortenson

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One man's campaign to build schools in the most dangerous, remote, and anti-American reaches of Asia: in 1993 Greg Mortenson was an American mountain-climbing bum wandering emaciated and lost throu...

Three cups of tea

By Sarah L. Thomson

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This young readers edition of the worldwide bestseller Three Cups of Tea has been specially adapted for younger readers and updated by Greg Mortenson to bring his remarkable story of humanitarianis...

Three Cups of Tea

By Greg Mortenson, Patrick Lawlor, David Oliver Relin

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Three Cups of Tea

By Greg Mortenson, David Oliver Relin

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Three Cups of Tea

By Greg Mortenson, Patrick Lawlor, David Oliver Relin

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Three Cups of Tea

By David Oliver Relin

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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.