Terry OSullivan Books

Business Networking

By Terry OSullivan, Catherine OSullivan

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Ancestral Healing Made Easy

By Terry OSullivan, Natalia

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Identify old family wounds, communicate with your ancestral guides, heal your lineage and achieve wellbeing for yourself and loved ones.To understand who we are, we must know where and who we come...

Ancestral Healing Made Easy

By Terry OSullivan, Natalia

Average: 0.00, 0 Ratings

Identify old family wounds, communicate with your ancestral guides, heal your lineage and achieve wellbeing for yourself and loved ones.To understand who we are, we must know where and who we come...

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.