Ludwig Wittgenstein (18891951) is one of the most important, influential, and often-cited philosophers of the twentieth century, yet he remains one of its most elusive and least accessible. The essays in this volume address central themes in Wittgensteins writings on the philosophy of mind, language, logic, and mathematics. They chart the development of his work and clarify the connections between its different stages. The contributors illuminate the character of the whole body of work by keeping a tight focus on some key topics: the style of the philosophy, the conception of grammar contained in it, rule-following, convention, logical necessity, the self, and what Wittgenstein called, in a famous phrase, forms of life.

Ludwig Wittgenstein: life and work an introduction 
Wittgenstein's critique of philosophy 
Pictures, logic, and the limits of sense in Wittgenstein's Tractatus 
Fitting versus tracking: Wittgenstein on representation 
Philosophy as grammar 
A philosophy of mathematics between two camps 
Necessity and normativity 
Wittgenstein, mathematics, and ethics: resisting the attractions of realism 
Notes and afterthoughts on the opening of Wittgenstein's Investigations 
Mind, meaning, and practice 
'Whose house is that?' Wittgenstein on the self 
The question of linguistic idealism revisited 
Forms of life: mapping the rough ground 
Certainties of a world-picture: the epistemological investigations of On Certainty 
The availability of Wittgenstein's philosophy 
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