David Jefferis Books

Our Solar System Jump Space

By David Jefferis

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The Universe Jump Space

By Ian Graham, David Jefferis

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Cloning

By David Jefferis

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

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...

Flight Book

By David Jefferis

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De memoire de-- avions

By David Jefferis

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Traces the evolution of the airplane from man's first flying machine to today's supersonic jets.

Les geants de l aviation

By David Jefferis

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Helicopteres

By David Jefferis

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ISS. Die internationale Raumstation. Ab 8 J. .

By Sebastian Quigley, David Jefferis

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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.