Projective geometry.

Projective and Euclidean geometry

Projective Geometry of N Dimensions by O. Schreier & E. Sperner 1961 HC

An Introduction to Projective Geometry and Its Applications; an [Leather Bound]

Projective and analytical geometry, by John Todd

Projective Differential Geometry of Curves and Ruled Surfaces E. J. Wilczynsk

Cartesian and Projective Geometry by R. Walker - Pub: Arnold - 1953 - Hardback

The Projective Cast: Architecture and Its Three Geometries