Book excerpt: Drawing on the original phenomenological work of Maurice Merleau-Ponty, Edmund Husserl, Simone de Beauvoir, and John Russon, as well as recent research in child psychology, The Other in Perception argues for perception's inherently existential significance: we always perceive a world and not just objective facts. The world is the rich domain of our personal and interpersonal lives, and central to this world is the role of other people. We are "paired" with others such that our perception is really the enactment of a coinhabiting of a shared world. These relations with others shape the very way in which we perceive our world. Susan Bredlau explores two uniquely formative domains in which our pairing relations with others are particularly critical: childhood development and sexuality. It is through formative childhood experience that the essential, background structures of our world are instituted, which has important consequences for our developed perceptual life. Sexuality is an analogous domain of formative intersubjective experience. Taken as a whole, Bredlau demonstrates the unique, pervasive, and overwhelmingly important role of other people within our lived experience.