Available again: a landmark collection on sensation and perception that remains influential. This landmark volume, which remains influential today, is the result of an interdisciplinary, two-week international symposium on principles of sensory communication hosted by MIT in July 1959. This symposium brought together prominent neuroscientists, life scientists, physical scientists, and engineers who, in Walter Rosenblith's words, "were willing to listen to neurophysiologists expound up-to-date neurophysiology, or psychophysicists talk about contemporary psychophysics, without being satisfied with their own version of the other man's science." The work presented forms the basis of much of the contemporary research in vision and perceptual science.