Images provided by the Universal Postal Union's International stamp-design competition.
The Universal Postal Union is the United Nation's specialized agency
that aims to ensure that postal service is provided — throughout the world — as rapidly,
as economically and as reliably as possible. With some six million postal employees working
in over 700,000 post offices and mail centers to process and deliver more than
400 billion mail items each year, the postal services of the UPU's 189 member countries
form the largest physical disribution network in the world.

www.upu.int