Everybody knows about Street Art. Who has not seen these colourful "vandalism" displays plastered against walls or the side of trains? This aerosol art known as Pressionism is one of the major artistic revolutions of the 20th century and requires years of practice. The movement, which started in the United States, made its way to Europe, to Paris, and more specifically to Saint-Germain-des Prés, before spreading across the globe. The official catalogue of the current Pinacothèque exposition, this book follows the main aesthetic developments of the graffiti movement.