Joshua DuBois Books

The President's Devotional: The Daily Readings That Inspired President Obama

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In the heat of Barack Obama's first presidential campaign, staff member Joshua DuBois recognized the wear and tear on his boss and asked the senator if he could e-mail a devotional to him each day....

President s Devotional

By Joshua DuBois

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The President's Devotional: The Daily Readings That Inspired President Obama

By Joshua DuBois

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My Sleeveless Heart

By Joshua DuBois

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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.