Christine Filipak Books

Madame Endora s Fortune Cards

By Christine Filipak

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Allure of the Vampire

By Corvis Nocturnum, Christine Filipak

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Madame Endora 2006 Calendar of Fortune

By Christine Filipak

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Madame Endora's Book of Fortunes

By Joseph Vargo

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A Guide to Madame Endora's Fortune Cards and Mystical Wisdom Throughout the Ages. This guidebook to Madame Endora's Fortune Cards offers insightful advice concerning matters of love, money, health...

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.