George K. Simon Books

The Judas syndrome

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"Even people we think are our friends will deny and betray us. Are they bad people, or just don t do enough, or people with good intentions but acting in ignorance? Or are they basically decent peo...

In sheep s clothing

By George K. Simon

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..."Illustrates the true nature of disturbed characters, exposes the tactics the most manipulative characters use to pull the wool over the eyes of others, and outlines powerful, practical ways to...

Judas Syndrome

By George K. Simon

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In Sheep s Clothing

By George K. Simon

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In Sheep s Clothing

By Maria Ramos, George K. Simon

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Lobos Con Piel De Cordero

By George K. Simon

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In Sheep s Clothing

By George K. Simon

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Character Disturbance

By George K. Simon

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Character Disturbance

By George K. Simon

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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.