 NonEuclidean Geometry by H. S. M. Coxeter, July, 1998
 Affine and Projective Geometry by M. K. Bennett, July, 1995
 Hyperbolic Geometry (Springer Undergraduate Mathematics Series) by James W. Anderson, December, 1999
 Riemannian Geometry (Graduate Texts in Mathematics, 171) by Peter Petersen, January, 1998
 Experiencing Geometry: In Euclidean, Spherical and Hyperbolic Spaces (2nd Edition) by David W. Henderson, Daina Taimina, 28 July, 2000
 Euclidean and NonEuclidean Geometries: Development and History by Marvin Jay Greenberg, August, 1993
 Euclidean and NonEuclidean Geometries by Maria Helena Noronha, Helena Noronha, 15 January, 2002
 Geometry, Relativity, and the Fourth Dimension by Rudolf V.B. Rucker, January, 1977
 Curves and Fractal Dimension by Claude Tricot, January, 1995
 Conformal Representation by Constantin Caratheodory, April, 1998
