Delve into the development of modern mathematics and match wits with Euclid, Newton, Descartes, and others. Each chapter explores an individual type of challeng

"This short book, first published in 1897, addresses three geometry puzzles that have been passed down from ancient times. Written for high school students, thi

Collection of nearly 200 unusual problems dealing with congruence and parallelism, the Pythagorean theorem, circles, area relationships, Ptolemy and the cyclic

This book is a unique collection of challenging geometry problems and detailed solutions that will build students’ confidence in mathematics. By proposing sev

A unique collection of competition problems from over twenty major national and international mathematical competitions for high school students. Written for tr