"Post-Modern space is historically specific, rooted in conventions, unlimited or ambiguous in zoning and irrational or transformational in its relation of parts to whole……. …skew or distorted spaces, created by sharp angles which exaggerate perspective…. …always keep a mental coordinate system no matter how free- form and baroque they become. The reference plane is always an implied frontality, and the route through the building or the curvilinear elements then relate to this conceptual cage"