Contemporary architectural practice, theory and especially architectural education are still dominated by obsolete psychological theories according to which perception is inseparable from the classification of the objects perceived–they rely on the assumptions that “there is no innocent eye” and that “all seeing is seeing as”. These misconceptions permeate architectural debates, result in the suppression of formal-visual concerns for the built environment and are clearly manifested whenever discussion of formal-visual qualities of architectural works is subsumed under the discussion of ideas associated with these works. At the same time, in opposition to these old views, modern psychology and philosophy of perception recognise that perceptual contents are non-conceptual and that perceiving is impenetrable for conceptual thinking (such as the ideas associated with architectural works). The aim of the book is to present these more contemporary theories of perception to the public of architects, architecture academics and students.