Robert Shea Books

Last Of Zinja Book 2 Last of the Zinja Series Book 2

By Robert Shea

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Illuminatus

By Robert Anton Wilson

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Illuminatus

By Robert Shea, Robert Anton Wilson

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Illuminatus

By Robert Shea, Robert Anton Wilson

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A multi sectoral approach to career development

By Robert Shea, Rhonda Joy

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"This book is a culmination of the many and varied career development topics which have appeared in The Canadian Journal of Career Development/Revue canadienne de développement de carrière over the...

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.