Jacob Appel Books

More Than Good Intentions

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A revolutionary approach to poverty that takes human irrationality into account-and unlocks the mystery of making philanthropic spending really work. American individuals and institutions spent...

More than good intentions

By Dean S. Karlan

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"A leading economist and researcher report from the front lines of a revolution in solving the world's most persistent problem. When it comes to global poverty, people are passionate and polarized....

Failing in the Field

By Jacob Appel, Dean Karlan

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More Than Good Intentions

By Dean Karlan

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A leading economist and researcher report from the front lines of a revolution in solving the world's most persistent problem. When it comes to global poverty, people are passionate and polarized...

Millard Salter s Last Day

By Jacob Appel

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Coulrophobia Fata Morgana

By Jacob Appel

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Surrendering Appomattox

By Jacob Appel

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Jacob Appel.

By Margrethe Christiansen

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Vartov

By Jacob Appel

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Failing in the Field

By Jacob Appel, Dean Karlan

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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.