Frater Yechidah Books

The Light Extended

By Frater Yechidah, Frater YShY, Chic Cicero

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Light Extended

By Frater Yshy, Frater Yechidah, Jaime Paul Lamb

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Light Extended

By Frater Yechidah, Sandra Tabatha Cicero, Jaime Paul Lamb

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Enochian Magic in Practice

By Frater Yechidah

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The second of Frater Yechidah's eagerly awaited Enochian Magic series, detailing John Dee and Edward Kelley's magical system in extraordinary detail, from the Heptarchic system to Enochian proper....

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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.