My dissertation is an examination of an oft-invoked but insufficiently understood feature of perceptual experience, namely, its presentational character. We open our eyes and a world is before us. Someone strikes a tuning fork, and a sound is simply present. To experience is always, in part, to appreciate phenomenally something as other or as before one; it is always, in part, to appreciate phenomenally a manifest opposition between the self—that before which the other is present—and the other—that which is present before the self. I call this aspect of experiential phenomenality, this universally appreciable but non-sensuous sense of otherness in experience, phenomenal presence.Phenomenal presence is uniquely suited to illuminate the subst...