90 classic titles celebrating 90 years of Penguin Books''All art,'' Oscar Wilde once announced, ''is quite useless.'' Selected here are some of his finest prose works on the subject of art – useless, illuminating, artificial, uplifting, radical, gorgeous, boring, sublime – and his most brilliant aphorisms on the creative life. Whether lamenting the crass urge to hold art to realist or natural standards or arguing against morality as a guiding principle, Wilde defends the artist while delighting the audience.