Ruby Hammer Books

Face Up: The Essential Make-up Handbook

By Ruby Hammer, Millie Kendall

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Business Law

By Ruby Hammer, David Kelly, John Hendy

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Business Law

By Ruby Hammer, David Kelly, John Hendy

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Business Law

By Ann Holmes, Ruth Hayward, John Hendy, Ann E. M. Holmes, Ruby Hammer, Janice Denoncourt, David Kelly

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This latest edition of __Business Law__ has been thoroughly updated and expanded to provide a clear and comprehensive treatment of the key aspects of business law. Major developments that have occu...

Business Law

By Janice Denoncourt, Kelly David, Ruby Hammer, John Hendy

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Business Law

By Janice Denoncourt, Kelly David, Ruby Hammer, John Hendy

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Business law

By David Kelly

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Business law

By David Kelly

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Modern Tort Law

By V. H. Harpwood

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Modern Tort Law

By V. H. Harpwood

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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.