Introduction. Editors' introduction / Oskari Kuusela and Marie McGinn -- Wittgenstein and biography / Brian McGuinness --Logic and the philosophy of mathematics -- Wittgenstein reads Russell / Gregory Landini -- Assertion, saying, and propositional complexity in Wittgenstein's Tractatus / Colin Johnston -- Wittgenstein and Frege / Wolfgang Kienzler -- Wittgenstein and infinity / A. W. Moore -- Wittgenstein on mathematics / Michael Potter -- Wittgenstein on surveyability of proofs / Matthieu Marion -- From logical method to 'messing about': Wittgenstein on 'open problems' in mathematics / Simo Saatela -- Philosophy of language. The proposition's progress / Charles Travis -- Logical atomism in Russell and Wittgenstein / Ian Proops -- The tractatus and the limits of sense / Cora Diamond -- The life of the sign: rule-following, practice, and agreement / Edward Minar -- Meaning and understanding / Barry Stroud -- Wittgenstein and idealism / David R. Cerbone -- Private language / David Stern -- Very general facts of nature / Lars Hertzberg -- Philosophy of mind. Wittgenstein on the first person / William Child -- Private experience and sense data / Paul Snowdon -- Privacy / Joachim Schulte -- Wittgenstein on action and the will / John Hyman -- Wittgenstein on criteria and the problem of other minds / Edward Witherspoon -- Wittgenstein on the experience of meaning and secondary use / Michel ter Hark -- Epistemology. Wittgenstein on scepticism / Duncan Pritchard -- Wittgenstein and Moore / Thomas Baldwin -- Wittgenstein on intuition, rule-following, and certainty: exchanges with Brouwer and Russell / Kim van Gennip -- Method. The development of Wittgenstein's philosophy / Oskari Kuusela -- Wittgenstein's methods / James Conant -- Grammar in the philosophical investigations / Marie McGinn -- Wittgenstein's use of examples / Beth Savickey -- Aspect perception and philosophical difficulty / Avner Baz -- Writing philosophy as poetry: literary form in Wittgenstein / Marjorie Perloff -- Wittgenstein and the moral dimension of philosophical problems / Joel Backstrom -- Religion, aesthetics, ethics -- Wittgenstein on religious belief / Stephen Mulhall -- Wittgenstein on aesthetics / Malcolm Budd -- Wittgenstein and ethics / Anne-Marie S. Christensen.