Craig Cooper Books

Your New Prime: 30 Days to Better Sex, Eternal Strength, and a Kick-Ass Life After 40

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"Feel great and perform at your best in the boardroom, weight room, bedroom, and beyond with this indispensable health and wellness guide: Your New Prime debunks current thinking about men's health...

Your new prime

By Craig Cooper

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Dinarchus, Hyperides, and Lycurgus:

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Sights and Sounds of the Athenian Court

By Cooper

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Sights and Sounds of the Athenian Court

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Blackmail is Murder

By Craig Cooper

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You'll die laughing.

By Craig Cooper

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Dame in distress.

By Craig Cooper

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What's Funny About Murder

By Craig Cooper

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No haloes for hoods

By Craig Cooper

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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.