Joseph D. Douglass Books

"Major topics addressed in this monograph include: Soviet interests in conventional capabilities (in particular, sub-unit operations); the advantages which might be derived from a conventional phas...

CBW, the poor man's atomic bomb

By Neil C. Livingstone

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Betrayed

By Jr. Joseph D. Douglass

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Red cocaine

By Joseph D. Douglass

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Red Cocaine

By Joseph D. Douglass

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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.