Gyles Brandreth Books

Who is Nick Saint?

By Gyles Brandreth

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This is your body

By Gyles Brandreth

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Uses an alphabetical arrangement to describe parts of the body and their functions.

This is your body

By Gyles Brandreth

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Uses an alphabetical arrangement to describe parts of the body and their functions.

Seeing is not believing

By Gyles Brandreth

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Presents optical illusions and explains why the eyes perceive what isn't actually so.

Seeing is not believing

By Gyles Brandreth

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Presents optical illusions and explains why the eyes perceive what isn't actually so.

Writing secret codes and sending hidden messages

By Gyles Brandreth, Gyles Daubeney Brandreth

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Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other trick...

Writing secret codes and sending hidden messages

By Gyles Brandreth, Gyles Daubeney Brandreth

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The big book of silly riddles

By Gyles Brandreth

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An illustrated collection of humorous riddles and puzzles, in such categories as "Crime Does Not Pay," "Absurd Animals," and "No Laughing in the Library."

Venice Midnight a Pbp

By Gyles Brandreth

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Oscar Wilde y el club de la Muerte

By Gyles Brandreth

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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.