On Being in the World, first published in 1990, illumines a neglected but important area of Wittgenstein¿s philosophy, revealing its pertinence to the central concerns of contemporary philosophy. The starting point is the idea of `continuous aspect perception¿.Professor Mulhall indicates parallels between Wittgenstein¿s interests and Heidegger¿s Being and Time, this work is therefore invaluable for anyone interested in negotiating the division between analytic and continental philosophy.