David Jefferis Books

Helicopters

By David Jefferis

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Satellites

By David Jefferis

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The aces

By Christopher Maynard, David Jefferis

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Introduces the ace pilots of World War I, their military aircraft, aerial tactics and stunts, and profiles such prominent aviators as the Red Baron and Eddie Rickenbacker.

The jet age

By David Jefferis

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Giants of the air

By David Jefferis

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Helicopters

By David Jefferis

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Supersonic Flight

By David Jefferis

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Flight, fliers, and flying machines

By David Jefferis

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

Top Gear

By Peter Lafferty, David Jefferis

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Discusses the pioneers in automotive history and the evolution of different types of cars.

Superbikes

By Peter Lafferty

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Surveys the history and functions of motorcycles, from their invention in the 1850s to their wartime uses and present sporting capabilities.

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.