Geometry

Sacred Geometry

An interesting book about the history and nature of geometry by Robert Lawlor.

Euclid's Elements

The Greek text of J.L. Heiberg (1883–1886) from Euclidis Elementa, edidit et Latine interpretatus est I.L. Heiberg, Lipsiae, in aedibus B.G. Teubneri, 1883–1886 with an accompanying English translation by Richard Fitzpatrick