Peter Gregory Books

Solaris Security
Solaris Security

By Peter H. Gregory

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Enterprise Information Security: Information Security For Non-technical Decision Makers
Richard the Lionheart Great Tales from Long Ago
Disaster Recovery Planning For Dummies
Biometrics for dummies
Biometrics for dummies

By Peter H. Gregory

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Court reporting in Australia
Trucks
Trucks

By Peter Gregory, Andrew Langley

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Describes different kinds of trucks and their uses. Includes tankers, containers, earth movers, and others.

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Science and the Garden
Telephones for the elderly
Telephones for the elderly

By Gregory Peter

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CISSP for Dummies

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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.

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