Michael Gomes Books

THEOSOPHY IN 19TH CENTURY

By Gomes, Michael Gomes

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Kohala Aina

By Sophia V. Schweitzer, Mochael S. Gomes

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Isis Unveiled

By Michael Gomes, H. P. Blavatsky

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Serving a Higher Purpose

By David P. Bruce, Michael Gomes

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The Secret Doctrine

By H.P. Blavatsky

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Madame Blavatsky's Victorian-era masterpiece is now scaled down to its essentials, providing the most readable, accessible experience ever of one of history's seminal occult works. The Secret Doctr...

Gomes Family Bible

By Michael Gomes

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Chess for Kids

By Michael Gomes

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The Dawning of the Theosophical Movement

By Michael Gomes

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CCM Operational Guidelines

By Pat Johnson, Michael Gomes, Stephen Parris, Canadian Christian Ministries

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Opposition Satanique Face Au Salut

By Michael Gomes, Tatiana Pisareva

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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.