John Bremner Books

Mensa Mind Busters

By Kenneth A. Russell, Philip J. Carter, John Bremner

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Mensa How To Excel At Iq Tests

By Carlton Books

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Mensa The Ultimate Puzzle Challenge

By Ken Russell, Philip Carter, John Bremner

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The amazing 1000 puzzle challenge

By Robert Allen

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The complete book of intelligence tests

By John Bremner

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"Initially offers a series of tests for the reader tp discover their mental strengths and weaknesses, and offer ways to address those areas they identify as needing work. In the second part, the au...

New Number Puzzles

By John Bremner

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Mensa Visual Puzzles

By John Bremner

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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.