Charles A. Sennewald Books

Effective security management

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This latest edition of Effective Security Management retains the qualities that made the previous editions a standard of the profession: a readable, comprehensive guide to the planning, staffing, a...

Retail Crime, Security, and Loss Prevention: An Encyclopedic Reference

By Charles A. Sennewald, John H. Christman

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Effective Security Management

By Charles A. Sennewald

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Security Consulting

By Charles A. Sennewald

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Process of Investigation, The: Concepts and Strategies for the Security Professional

By Charles A. Sennewald

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Effective security management

By Charles A Sennewald

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The Process of Investigation Second Edition

By Charles A. Sennewald, Charles Sennewald, John Tsukayama

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Security consulting

By Charles A. Sennewald

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Shoplifting

By Charles A. Sennewald

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Security consulting

By Charles A. Sennewald

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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.