Kent D. Shifferd Books

From war to peace

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"This book analyzes the war system's infiltration of all aspects of Western culture and how it perpetuates war rather than promote peace, describing the evolving parallel system of peace institutio...

A global security system

By Kent D. Shifferd

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From War to Peace

By Kent D. Shifferd

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Global Security System

By Kent Shifferd, Patrick Hiller

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Planetary Emergency

By Kent D. Shifferd

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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.