“A theory of haptics is expounded which the author feels will establish "a foundation for the Haptics of form and the psychology of the blind." He differentiates between "Haptics of an essentially optical character" and "pure or autonomous Haptics" such as is experienced by those blind from early childhood. The weaknesses of certain psychological theories such as Gestalt, are discussed in terms of Révész's haptic theory. Part II of the book analyzes the aesthetics of haptic form and the art of the blind. The work of blind sculptors is presented and is analyzed.”