Hans Jurgen Eysenck Books

Know your own Psi-Q

By Hans Jurgen Eysenck

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Know your own PSI-Q

By Hans Jurgen Eysenck

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Test your IQ

By Hans Jurgen Eysenck

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I. Q. Collection - Includes Know Your Own I.Q. and Check Your Own I.Q.

By Hans Jurgen Eysenck

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The psychology of politics

By Hans Jurgen Eysenck

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In writing The Psychology of Politics, Hans Eysenck had two aims in mind: to write a book about modern developments in the field of attitude studies which would be intelligible to the layman; and o...

Smoking Health and Personality

By Hans Jurgen Eysenck

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Intelligence

By Hans Jurgen Eysenck

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Decline & fall of the Freudian empire

By Hans Jurgen Eysenck

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Causes and Effects of Smoking

By Hans Jurgen Eysenck

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The Psychological basis of ideology

By Hans Jurgen Eysenck

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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.