Gareth Moore Books

10-Minute Brain Games

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The perfect stocking stuffer for puzzle and logic enthusiasts. A brain-teasing collection of mental workouts, designed to be solved in 10 minutes. Puzzlers of all skill levels: challenge yourself t...

Tetris Puzzles

By Gareth Moore

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Mind Works

By Gareth Moore, Graham Jones

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Fast brain workouts

By Gareth Moore

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Does simple mental arithmetic exhaust you? Do you struggle to remember important birthdays, your PIN, or what you went upstairs for? Does your mind wander when you really should be concentrating? I...

Mensa Train Your Brain

By Gareth Moore

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Brain Games for Clever Kids

By Gareth Moore

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Alan Turing Codebreaker s Puzzle Book

By Gareth Moore

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Brain Workout

By Gareth Moore

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Use it or lose it! Your mind needs exercise to stay in top condition, just as your body does. By working up a cerebral sweat in this ‘mental gymnasium’ you will soon have a lean, mean t...

The 10 Minute Brain Workout

By Gareth Moore

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Think outside the box

By Gareth Moore

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Are you ready to bend your mind and think in new ways? Pit your wits against these super cool puzzles and see where they take you! Use your eyes and memory to get around mazes, solve 3D puzzles, tu...

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.