Valerie Rousseau Books

The hidden art

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'The Hidden Art' reveals for the first time an exceptional trove of contemporary and historic artworks by an exemplary roster of international self-taught artists from the collection of Audrey B. H...

When the curtain never comes down

By Valerie Rousseau, Anne Imelda Radice, Mario Del Curto

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Eugen Gabritschevsky

By Antoine De Galbert, Valerie Rousseau, Sarah Lombardi

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Généticien ayant souffert de schizophrénie à l'âge de 35 ans, il a été interné pendant plus de 45 ans, période durant laquelle il a produit une œuvre très importante. Cette oeuvre reconnue très tôt...

Art Brut in America

By Sarah Lombardi, Valerie Rousseau, Jean Dubuffet, Jim Shaw, Kent Minturn

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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.