John Malone Books

The corruption of Harold Hoskins

By John Malone

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Predicting the future

By John Williams Malone

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This book tells the stories behind scores of predictions made over the past 140 years. Each prediction, its date, and the name of the predictor is followed by a short essay focusing not only on whe...

21st Century Gay

By John Malone

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"At the start of a new century, gay and lesbian Americans find themselves at a crossroads. Since the birth of the Gay Rights Movement in the Stonewall riots of 1969, great progress has been made, y...

21st Century Gay

By John Malone

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How to book

By John Williams Malone

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Unsolved Mysteries of Science

By John Malone

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Oz Will Fall

By Nicole Delgado, John Malone

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Farewell Forever

By John Malone

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Friendly Street New Poets 1 Friendly Street new poets

By Yve Louis, Geoff Kemp, John Malone

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Como Hacer Las Cosas Bien

By Malone

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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.