Doug Dahlgren Books

The Basics Of Fundamentals

By Doug Dahlgren, Doug, Dahlgren

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It Was Thursday

By Doug Dahlgren

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The Son Silas Rising

By Doug Dahlgren

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The Only Constant

By Doug Dahlgren

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BOOK TWO of the SERIES : Jonathan Crane has many new friends, but friends are not what he sought. While verifing a candidate for removal, other issues command his attention. One thing leads to anot...

Daedalus Directive

By Doug Dahlgren

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Eagle

By Doug Dahlgren

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Traveler

By Doug Dahlgren

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The Four Samaritans

By Doug Dahlgren

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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.