Derek Hansen Books

Psycho Cat

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Man has a long and pathetic history of pandering to cats. A million years ago they had us for dinner. Now they have us for fools take advantage of our generosity our forgiveness our patience and na...

Blockade

By Derek Hansen

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Lunch with a soldier

By Derek Hansen

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Something Fishy

By Derek Hansen

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Lunch with the generals

By Derek Hansen

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Banking and small business Studies in development policy

By Derek Hansen

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McGregor s Johannesburg Stock Exchange Digest Update. May Aug 1999.

By WenTech Ltd

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Lunch with the generals

By Derek Hansen

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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.