Eric J. Douglass Books

Video Astronomy Sky Telescope Observer s Guides

By Eric J. Douglass, Thomas A. Dobbins, Steve Massey

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Video Astronomy Sky Telescope Observer s Guides Revised Edition

By Eric J. Douglass, Thomas A. Dobbins, Steve Massey

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Interpreting New Testament Narratives

By Eric J. Douglass

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Reading the Bible Ethically

By Eric J. Douglass

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Reading the Bible Ethically

By Eric J. Douglass

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All interpretive systems deal with the author. Modern systems consider the text to be autonomous, so that it is disconnected from the authors interests. In this book, Eric Douglass reconsiders thi...

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.