Tony Johnstone Books

The Quilt Story

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A pioneer mother lovingly stitches a beautiful quilt which warms and comforts her daughter Abigail; many years later another mother mends and patches it for her little girl.

Master Your Short Game

By Nick Price, Tony Johnstone

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Uncle Rain Cloud

By Tony Johnstone

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The life and thoughts of Tony Johnstone.

By Tony Johnstone

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Master Your Short Game

By Nick Wright, Tony Johnstone

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Meistern Sie das kurze Spiel.

By Tony Johnstone

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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.