Paul Halpern Books

Essentials of Canadian managerial finance

By Paul J. Halpern

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Time Journeys: A Search for Cosmic Destiny and Meaning

By Paul Halpern

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Time Journeys: A Search For Cosmic Destiny And Meaning

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The cyclical serpent

By Paul Halpern

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From the very dawn of history, humans have struggled with the question of cosmic destiny. Ancient cultures worldwide invoked powerful mythological images to celebrate the cyclical nature of the ear...

Countdown to Apocalypse

By Paul Halpern

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Brave New Universe: Illuminating the Darkest Secrets of the Cosmos

By Paul Halpern, Paul Wesson

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Brave New Universe

By Paul Halpern

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Cosmic wormholes

By Paul Halpern

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Einstein s dice and Schrodinger s cat

By Paul Halpern

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What s Science Ever Done For Us

By Paul Halpern

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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.