John Devries Books

Only You!...Worthy Of Our Praise

By John DeVries, John Devries

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Christmas Joy: An Easy-To-Sing, Easy-To-Stage Christmas Musical For Children

By Pam Andrews, John Devries

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Christmas At Bethlehem Gulch: An 'Old West' Children'S Musical About The Coming Of The Savior

By Pam Andrews, John Devries

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The Christmas Present: An Easy-To-Sing, Easy-To-Stage Christmas Musical For Children

By Pam Andrews, John Devries, Pam Andrews, John Devries

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1 score (53 p.) ; 27 cm Children's sacred musical For children's chorus (unison, some 2 part), solo voice, 10 speaking parts, and keyboard Production notes: p. 49-53 The Christmas present -- Scene...

Why Pray? 40 Days - From Words To Relationship

By John Devries

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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.