Book of Donmon Teith

Carl Czerny (1791–1857) was an Austrian pianist, composer and teacher. Today he is best remembered for his volumes of études for the piano. Czerny's music wa

Number theory proves to be a virtually inexhaustible source of intriguing puzzle problems. Includes divisors, perfect numbers, the congruences of Gauss, scales

Thrillcraft: The Environmental Consequences of Motorized Recreation exposes the lasting damage done to our land, water, and air from the growing plague of jet s