Black Gary Jr Books

Exploring the life and calling

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In this introductory volume for the series, Black asserts that while the primary subjects of seminary and professional church work training may dominate the interests of students, students must eng...

Preparing for heaven

By Black Gary Jr

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Preparing for heaven

By Black Gary Jr

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The theology of Dallas Willard

By Black Gary Jr

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Blending both a prophetic critique with pastoral encouragement, Willard's unique understanding of the reality present within a life lived as a disciple of Jesus in the kingdom of God is attracting...

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.