Jeffrey Abugel Books

Feeling Unreal: Depersonalization Disorder and the Loss of the Self

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Stranger To My Self Inside Depersonaization The Hidden Epidemic

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A journalistic, yet highly personal examination of depersonalization as a disorder, and a cultural phenomenon, including case histories, treatment, and literary and spiritual perspectives. Written...

Edgar Allan Poe s Petersburg

By Jeffrey Abugel

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Extreme Overvalued Beliefs

By Tahir Rahman, Jeffrey Abugel

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Feeling Unreal

By Jeffrey Abugel, Daphne Simeon

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Feeling Unreal: Depersonalization Disorder and the Loss of the Self

By Daphne Simeon

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Edgar Allan Poe s Petersburg

By Jeffrey Abugel

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Edgar Allan Poe s Petersburg

By Jeffrey Abugel

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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.