David Jaffe Books

Learn how frictionless organizations cut costs, grow revenue, and create loyal fans by creating products and services that work so well, their customers never have to contact them for the wrong rea...

Frictionless Organization

By Bill Price, David Jaffe

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Frictionless Organization

By Bill Price, David Jaffe

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Changing the World from the Inside Out

By David Jaffe

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WINNER OF THE 2016 JEWISH BOOK COUNCIL AWARD FOR CONTEMPORARY JEWISH LIFE AND PRACTICEAn inspiring and accessible guide, drawn from Jewish wisdom, for building the inner qualities necessary to work...

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.