Penelope Russianoff Books

Learn to change the emotional bad habits that make you unhappy.- Recognize Your Emotional Bad Habits (and start to break them)- Throw Off Your Security Blanket (and accept that you can have happine...

When Am I Going to Be Happy

By Penelope Russianoff

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When Am I Going to Be Happy

By Penelope Russianoff

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Women in crisis

By Women In Crisis Conference 1st 1979 New York N.Y.

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Para Vivir Feliz When Am I Going to Be Happy

By Penelope Russianoff

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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.