Johan J. Mattelaer Books

Verboden vrucht

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Seks is van alle tijden. Seks is noodzakelijk voor de voortplanting en de instandhouding van de soort. Maar wat bij dieren een instinct blijft, is bij de mens ontwikkeld tot een cultureel gegeven,...

De fallus

By Johan J. Mattelaer

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Roma intima

By Bert Gevaert, Johan J. Mattelaer

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Roma intima

By Johan J. Mattelaer

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In het oude Rome waren orgieën toch dagelijkse kost? Rome was toch een waar paradijs voor mensen met grote seksuele appetijt? 0Na de ontdekking van de erotische afbeeldingen in Pompeii en Herculane...

A Belgian passage to China 1870 1930

By Patrick Maselis, Roland Dussart Desart, Thomas Baert, Johan J. Mattelaer, Mathieu Torck, Charles Lagrange

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A Belgian Passage to China (1870-1930) brings a forgotten episode of Belgium's overseas history into the limelight. It highlights two projects. François Nuyens left Ghent for the city of Tianjin in...

The Phallus in Art Culture

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From ornamentation to mutilation

By Johan J. Mattelaer

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Urine. Urination Catheterisation Collection. The Liquid White Gold

By Johan J. Mattelaer

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For This Relief Much Thanks ...

By Johan J. Mattelaer, Ian Connerty

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Seksuologische en minder logische verhalen

By Johan J. Mattelaer

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Van de Romeinse 'Ars Amandi' en de Indiase 'Kama Sutra' via Freuds psychoanalyse tot moderne weten- schappelijke en erotische literatuur: de fascinatie voor seks is eeuwenoud. In heidense godsdiens...

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.