J. Gordon Henry Books

Spiritual warfare

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This book contains twelve studies on spiritual warfare, which are desgined to "not only provide basic knowledge, but will motivate you to stand strong in the Lord and in the power of His might and...

Intercession prayer as work

By J. Gordon Henry

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A Christian s necessary food

By J. Gordon Henry

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The enabler

By J. Gordon Henry

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Notes from my Bible

By J. Gordon Henry

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Adoration prayer as worship

By J. Gordon Henry

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Upper Room Discourse

By J. Gordon Henry

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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.