Acquaintance with a property involves standing in a certain representational relation to the property; the externalist claims that the relevant relation brings in external conditions. This chapter looks at some more developed versions of the representational view, which explain in different ways how we manage to experientially represent the world. For representationalists, the puzzle concerns how soggy grey matter “in here” enables us to experientially represent a variety of colors, shapes, and other perceptible properties as occurring “out there” in external space. In illusion and hallucination, such representations are internally generated and occur in the absence of real objects having those properties, but they are still externally directed. As in the cases of pain and smell, neuroscience suggests that the best explanation is instead to be found in the brain. While there is “bad external correlation”, there is “good internal correlation”.