To give a brief outline of the mythology associated with the heavens. To teach the beginner how to identify the constellations and individual stars. To offer the more experienced observer a practical field book, conveniently arranged, with a double system of charts and text—one for use with the unaided eye and with a field glass; the other for use with small telescopes. To stimulate not only a general interest in astronomy, but also an observational work.Excerpted from preface