Roger Kennedy Books

Couch tales

By Roger Kennedy

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The Elusive Human Subject

By Roger Kennedy

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Power of Music

By Roger Kennedy

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Chutzpah and Chutzpah

By Richard Myers, Roger Kennedy, Simon Goode

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Mission

By Roger G. Kennedy

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Roger Kennedy is very much a historian for our time. Never content with a mere sequence of facts, figures, and events, he brings to his subject the voice of an interpreter and storyteller, ranging...

La Libido

By Roger Kennedy

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Psychotherapists as expert witnesses

By Roger Kennedy

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Psychoanalytic Psychotherapy after Child Abuse

By Roger Kennedy, Catherine Itzin, Valerie Sinason, Fay Maxted, Daniel McQueen

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Couch Tales

By Roger Kennedy

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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.