Wittgenstein's complex and demanding work challenges much that is taken for granted in philosophical thinking as well as in the theorizing of art, theology, science and culture. Each essay in this collection explores a key concept involved in Wittgenstein's thinking, relating it to his understanding of philosophy, and outlining the arguments and explaining the implications of each concept. Concepts covered include grammar, meaning and meaning-blindness language-games and private language, family resemblances, psychologism, rule-following, teaching and learning, avowals, Moore's Paradox, aspect seeing, the meter-stick, and criteria. Students new to Wittgenstein and readers interested in developing their understanding of specific aspects of his philosophical work will find this book very welcome.