Mark Dudley Books

Business Vision: Teacher's Book
An eye to the sky
An eye to the sky

By Mark E. Dudley

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Describes the telescopes, rockets, satellites, and space probes by which humans have pursued unmanned exploration of outer space.

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Adventures in Space
Adventures in Space

By Susan Gold, Mark Dudley

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Closure Evening Shift Volume 3
The Five Stages In Relationships
The Power of Audacity
The Power of Audacity

By Mark Dudley

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The Tea Bag Principle
The Tea Bag Principle

By Mark Dudley

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House of Prayer or House of Pain
Dream Fulfillment
Dream Fulfillment

By Mark Dudley

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I Know Who I Am In God Devotional

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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.

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