The first 'book' refers to the 'diminution of plane surfaces' (6), the second explains the trial of ' diminution of square bodies' and those having a number of faces positioned at right angles to the planes'(7) and the third one 'the diminution of bodies' (8), that seems more difficult to realize.
Analyzing Francesca's different ways of perspective, Kim Veltman notices 'geometrical proportion using diagonals' (9) a 'surveying type using a rod or a plane' (10) and 'a diagonal' (11) to determine the distance.
There are also new 'perspective views' considered by Francesco in his book 'The Geometrical Method' ,these were basically used in the context of pavements, ceilings, facades and buildings and. He also used 'The Window Method' that had more elaborate details and was represented in architecture.
Duccio di Buoninsegna was an Italian painter (1278-1319) who demonstrated the use of perspective in architectural forms. His style seems to be different in his tendency of giving his figures more volume. His 'perspective 'infuses elements from Byzantine style with more dramatic scenes and specific figures.
In his 45 panels representing scenes from the Bible and saints he inspired from primitive Christian style regarding the outlines of figures, gestures, and clothes. In this way he tried to create a more natural visual impression. His art of 3 D perspective created a special spatiality, a type of 'breathing space' (17) around the persons and objects. The artist used a special technique of registering in his paintings intricate details (for example