Wilson Glenn Books

Tout Pour Découvrir L'Harmonie Sexuelle

By Glenn Wilson, Wilson Glenn

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Born Gay: The Psychobiology Of Sex Orientation

By Glenn Wilson, Qazi Rahman, Wilson Glenn, Glen Wilson, Wilson, Glenn, Rahman, Qazi

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176 pages : 20 cm A key study in the psychobiology of sexual orientation and its true causes. Since the ground-breaking work of Simon LeVay and Dean Hamer in the early 1990s, a tremendous amount of...

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.