Edgar A. Levenson Books

Historically, Dr. Levenson shows, each psychoanalytic position has suffered from an arrogance of time and place in its belief that it remains forever relevant. The patient, who in the early years o...

Fallacy of Understanding and the Ambiguity of Change

By Edgar Levenson

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Fallacy of Understanding and the Ambiguity of Change

By Edgar Levenson

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Fallacy of Understanding and the Ambiguity of Change

By Edgar Levenson

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Purloined Self

By Alan Slomowitz, Edgar Levenson

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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.