Language classes in Martian!

If you believe an alien invasion is imminent, this is the class for you!  The Pompidou Centre center in Paris is offering classes in MARTIAN!  You can learn useful phrases like "Take me to your leader" and "I come in peace."  The head of the center says visitors will be able to write in Martian, create customized books and discover 3000 other spoken and written languages.  Hmmm... how exactly do they already know how to speak Martian?!?