Mathematics of the Incas published by Harper Torchbooks

published by Harper Torchbooks

and correspondences

a leading American illustrator offers insights into how serious beginners can become sketch masters

This profound insight

lifetime work

Mathematics of the Incas published by Harper TorchbooksThe Incas of ancient Peru possessed no writing. Instead, they developed a unique system expressed on spatial arrays of colored knotted cords called quipus to record and transmit information throughout their vast empire. The present book is based on a firsthand study of actual quipus that survived the destruction of the Inca civilization. Written by a mathematician and an anthropologist, this book acquaints the reader with the cultural context of the