The well constructed program allows you to view the heavens in two different ways - as you might observe by looking up into the night sky by the varying magnitude of the stars and secondly, the display can be changed to show each constellation by a code of letters. For example, a group of letter Gs indicate the position of the constellation Gemini.
Using this letter code, all fifty constellations are listed, the accompanying notes giving additional information to the user.
All in all a very good educational package which is simple to use. Amateur astronomers might also like to consider this one if they're fortunate enough to own an Electron.