Models of the Real Projective Plane

1: Some Representations of the Real Projective Plane before 1900.- 1.1 Closed Surfaces.- 1.2 The Real Projective Plane.- 1.3 Steiner Surfaces.- 2: The Boy Surface.- 2.1 Embedded and Immersed Surfaces.- 2.2 Parametrization of the Boy Surface by Three Polynomials.- 2.3 How to Eliminate Whitney Umbrellas.- 2.4 A Boy Surface of Degree Six.- 3: More about Immersions in the 3-dimensional Sphere.- 3.1 Self-Transveral Immersions of the Real Projective Plane.- 3.2 Classification of Immersed Projective Planes of Boy Type.- 3.3 The Halfway Model.- Plate Index.- Plates.