The Penguin Dictionary of Curious and Interesting Geometry

A superb collection of classical geometrical results. Each theorem is stated, its historical significance discussed, if there are any subtle points, they are mentioned, its relation to other theorems is also discussed. Many of the results presented are mostly forgotten after the invention of co-ordinate geometry by Descartes, but with the help of this book, the reader can get the feel of geometry the way it was in Pappus's time.