This book offers two novel claims about Wittgenstein s views and methods on perception as explored in the Philosophical Investigations. The first is an interpretive claim about Wittgenstein: that his views on sensation and perception, including his critique of private language, have their roots in his reflections on sense-datum theories and on what Hymers calls the misleading metaphor of phenomenal space. The second is a major philosophical claim: that Wittgenstein s critique of the misleading metaphor of phenomenal space is of ongoing relevance to current debates concerning...