The theory and applications of the projective properties of geometric figures.
Projective geometry is that part of geometry that depends only on points, lines and planes and relationships that can be established without using distances and angles. A key aspect of projective geometry is to include infinite as a key part and show how consideration of the infinite resolves
many of the special cases of standard geometry.
In this Main Lesson the basic concepts are reviewed and coupled with a series of diagrammatic constructions to provide a visual and practical approach
to the subject. At the end of the Main Lesson we play with projections to explore popular illusions of 3D art. This is ultimately a difficult subject, but some of the ideas can be understood through practical drawing.
