David Jefferis Books

Alien lifesearch

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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.

Into Infinity

By David Jefferis

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Internet

By David Jefferis

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Super Subs

By David Jefferis

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Describes different types of submarine vehicles and their development, discussing their various uses for military purposes, undersea exploration, and ocean research

Artificial intelligence

By David Jefferis

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An introduction to the past, present, and future of artificial intelligence and robotics, discussing early science fiction predictions, the dawn of AI, and today's use of robots in factories and sp...

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 David Jefferis

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Alien Life Search

By David Jefferis

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Into Infinity

By David Jefferis

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Internet

By 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.