It's hard to tell from the titles, but there are 2 volumes of this book; I think this is volume 1. Each volume has 15 short stories about famous mathematicians, suitable for any age from (I'm guessing) 8 to adult. I've been reading these stories for family reading, and my 11 year old son is actually excited about geometry! After reading about Pascal, we did some internet research about cycloids and hypocycloids; more commonly known as the figures that can be drawn with a Spirograph. Volume One has chapters on the following people: Thales, Pythagoras, Archimedes, Hypatia, Napier, Galileo, Pascal, Newton, Euler, Lagrange, Germain, Gauss, Galois, Noether and Ramanujan. Volume 2 covers Euclid, Khayyam, Fibonacci, Cardano, Descartes, Fermat, Agnesi, Banneker, Babbage, Somerville, Abel, Lovelace, Kovalevsky, Einstein and Polya. I highly recommend this book for increasing a child's (or an adult's) interests in the fields of math, geometry, physics and philosophy. I wish there was a Volume Three!