John Derbyshire Books

We Are Doomed: Reclaiming Conservative Pessimism

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Don't be seduced by all this nonsense about "the politics of hope": skepticism, pessimism, and suspicion of happy talk are the true characteristics of an authentically conservative temperament.

We Are Doomed

By John Derbyshire

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To his fellow conservatives, John Derbyshire makes a plea: Don't be seduced by this nonsense about "the politics of hope." Skepticism, pessimism, and suspicion of happy talk are the true characteri...

Prime Obsession: Bernhard Riemann and the Greatest Unsolved Problem in Mathematics

By John Derbyshire

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Unknown Quantity: A Real and Imaginary History of Algebra

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Seeing Calvin Coolidge in a dream

By John Derbyshire

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Moonlight illuminates Chai and his wife, Ding, who enjoy the view from their backyard deck and recite Chinese poetry to each other. Chai, a disillusioned former Red Guard during the Cultural Revolu...

Seeing Calvin Coolidge in a Dream: A Novel

By John Derbyshire

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Unknown Quantity

By John Derbyshire

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Perfect for history buffs and armchair algebra experts, Unknown Quantity tells the story of the development of abstract mathematical thought.John Derbyshire discovers the story behind the formulae,...

Fire from the Sun Volume 1

By John Derbyshire

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Fire from the Sun Volume 1

By John Derbyshire

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Fire from the Sun Volume 2

By John Derbyshire

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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.