Davies Jefferis Books

Artificial Intelligence

By Davies Jefferis

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Cloning Megatech

By Davies Jefferis

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Cyberspace

By Davies Jefferis

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Alien Life Search

By Davies Jeffris

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Cyber space

By David Jefferis

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Surveys digital technology from the early days of computers to virtual reality and the World Wide Web, describing the uses of computer simulation in flight, battle, hazardous environments, and ente...

Cloning

By Davies Jefferis, David Jefferis

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Discusses the science of genetics, the first successful cloning of a mammal, its implications, and its ethical aspects.

Alien lifesearch

By David Jefferis

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Discusses what other planets may have the right conditions to support life and surveys aliens, unidentified flying objects, and our exploration of space.

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.