This book uses an examination of the annual Turner Prize to defend the view that the evaluation of artworks is a reason-based activity, notwithstanding the lack of any agreed criteria for judging excellence in art. It undertakes an empirical investigation of actual critical practice as evident within published commentaries on the Prize in order to examine and test theories of critical evaluation, including the ideas of Noel Carroll, Frank Sibley, Kendall Walton and Suzanne Langer. Case studies of work by Turner Prize winners such as Steve McQueen, Martin Creed, Tomma Abts are used to explore definitions of art and concepts of artistic value and meaning. The book will be of interest to academics in the fields of aesthetics, contemporary art and cultural studies, but also to practitioners working in the arts, media and education.