Douglas Jones Books

Communication and energy in changing urban environments

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A Season of Darkness

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The horrific true crime cold case of Marcia Trimble, the little girl who disappeared while selling Girl Scout cookies and was discovered a month later, strangled. This mystery haunted her family fo...

Notes on military administration

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Tactical notes compiled for the use of the gentlemen cadets of the Royal Military College of Canada

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Text book of military law

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Stock market heroes

By Douglas Jones

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Marriage and the Family

By Douglas Jones

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Organisational change in a social services department

By Douglas Jones

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Winding stair

By Jones Douglas C.

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Why and what

By Douglas Jones

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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.