David Johnston Books

PANZER TANK CREWSâthe most feared fighting men on earthOn September 1, 1939, Germany invaded Poland and ignited World War II with a revolutionary fighting force that would forever change the face...

Temples Of Chance

By David Cay Johnston, David Johnston, Johnston, David

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In just over a decade, revenues from gambling have grown from $2 billion a year to $10 billion. The immense profit potential of the gambling business has sucked in corporate giants like the Holiday...

Prescription and limitation

By Johnston David

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The Renewal of the Old Inaugural Lecture

By Johnston David

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Roman Law in Context

By David Johnston, Johnston David

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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.