Teach Yourself Geometry

"I came across this book when I was about 12. I liked the deductive aspects of geometry, and especially the way that simple assumptions could lead quickly to surprising results. The second part of Abbott’s book, in particular, offered a very concise exposition of the main theorems and proofs, making it possible to get something of a ‘big picture’. On top of all this, I found the actual layout of Abbott’s book, such as the thickness of line in the diagrams, visually appealing, and some 60 years later this had a major influence on the whole design of The Wonder Book of Geometry ."