Henri Parens Books

War is not inevitable

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In 1932 Einstein asked Freud, 'Is there any way of delivering mankind from the menace of war?' Freud answered that war is inevitable because humans have an instinct to self-destroy, a death instinc...

War is not inevitable

By Henri Parens

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Does God Help

By Akhtar Salman

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Real and Imaginary Fathers

By Akhtar Salman

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The Future of Prejudice

By Parens Henri

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The Future of Prejudice

By Afaf Mahfouz

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The Development of Aggression in Early Childhood

By Henri Parens

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Lying cheating and carrying on

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Lying, cheating, and carrying on

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Lying, cheating, and carrying on

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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.