World Post Day is celebrated on October 9 by the initiative of the United Nations since 1992. The aim of the festival is to promote and develop postal services all over the world.
According to UPU data, there are more than 600 thousand post offices. In 2012 the postal services delivered 350 billion letters and more than 6 billion parcels.
Unusual messages and methods of delivery - in this photo gallery by TASS.