Peter Villiers Books

Structured Workshops for Developing Leadership
Police Leadership in the 21st Century
Without fear or favour
Without fear or favour

By Peter Villiers

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Policing a Safe Just And Tolerant Society
Policing a Safe Just And Tolerant Society

By Rob Adlam, Peter Villiers

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This book examined ethical policing and fundamental values.

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Police and policing
Police and policing

By Peter Villiers

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Diagnostic Evaluation of Language Variation Criterion Referenced
Gavrilo Princip
Gavrilo Princip

By Peter John Villiers

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Fictional Leaders
Fictional Leaders
Joseph Conrad Master Mariner

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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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