The Life and Opinions of the Tomcat Murr together with a fragmentary Biography of Kapellmeister Johannes Kreisler on Random Sheets of Waste Paper is a complex satirical novel by Prussian Romantic-era author E.T.A. Hoffmann. It was first published in 1819-1821 as Lebens-Ansichten des Katers Murr nebst fragmentarischer Biographie des Kapellmeisters Johannes Kreisler in zufälligen Makulaturblättern, in two volumes. A planned third volume was never completed. It was Hoffmann's final novel and is considered his masterpiece. It reflected his concepts of aesthetics, and predated post-modern literary techniques in its unusual structure. Critic Alex Ross writes of the novel, "If the phantasmagoric 'Kater Murr' were published tomorrow as the work of a young Brooklyn hipster, it might be hailed as a tour de force of postmodern fiction."