Graham Witt Books

Database Design: Know It All

By Toby J. Teorey

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Writing Effective Business Rules

By Graham Witt

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Writing Effective Business Rules moves beyond the fundamental dilemma of system design: defining business rules either in natural language, intelligible but often ambiguous, or program code (or rul...

Data Modeling Essentials, Third Edition

By Graham Witt, Graeme Simsion

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Data Modeling Essentials

By Graham Witt, Graeme Simsion

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Writing Effective Business Rules

By Graham Witt

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Data Modeling for Quality

By Graham Witt

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Technical Writing for Quality

By Graham Witt

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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.