Simon LeVay Books

Healing the Brain

By Simon LeVay, Curt Freed

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Healing the Brain

By Simon LeVay, Curt Freed

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Human Sexuality

By Simon Levay, Sharon McBride Valente

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Human Sexuality Second Edition

By Simon Levay, Sharon McBride Valente

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In the middle of the eighth century the decaying city of Rome lies defenseless against the advance of the war-mongering Lombards. The new Pope, Stephen II, appeals for help from the Eastern Emperor...

Albrick's gold

By Simon LeVay

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Discovering Human Sexuality

By John Baldwin, Simon LeVay, Janice Baldwin

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Discovering Human Sexuality Fourth Edition

By John Baldwin, Simon LeVay, Janice Baldwin

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El cerebro sexual

By Simon Levay

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Gay, Straight, and the Reason Why: The Science of Sexual Orientation

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xiv, 246 pages : 24 cm

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.