Gerald Brittle Books

The demonologist

By Gerald Brittle

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The Demonologist: The Extraordinary Career of Ed and Lorraine Warren

By Gerald Brittle

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Nonfiction. Describes the life-long work of demonologist Ed Warren and his wife Lorraine. Explains the three stage process - infestation, oppression, possession - that has characterized demoniacal...

The Demonologist

By Gerald Brittle

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The Devil in Connecticut

By Gerald Brittle

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Nonfiction account of 1980 possession case in Diocese of Bridgeport, Connecticut. Book is a reconstruction of a diabolic attack on a New England family by 43 demonic entities. Case required the att...

The Demonologist

By Gerald Brittle

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The Devil in Connecticut

By Gerald Brittle

Average: 0.00, 0 Ratings

The Demonologist

By Gerald Brittle

Average: 0.00, 0 Ratings

Nonfiction. Describes the life-long work of demonologist Ed Warren and his wife Lorraine. Explains the three stage process - infestation, oppression, possession - that has characterized demoniacal...

Devil in Connecticut

By Gerald Brittle, Ed Warren, Lorraine Warren

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Yu ai yin si tan yue qiu man bu san bu huan xing ni de jing ren ji yi li

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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.