This book introduces the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) also
known as the The Sky Eye one of the China's big science facilities. Using easy-to-understand
language the book covers the scientific background construction process achievements and
effects of FAST on the development of the national economy. With a large number of intuitive
and vivid images and videos the book presents basic information on FAST for general readers
who are interested in astronomy.