Communicating through posters

I am a little bit of a poster collector so The Imperial War Museum's poster exhibition, which is running from the 4th October, caught my eye.

Following the evolution of the poster from World War One to the present day, the exhibition follows how the themes developed and what was effective and built upon.

Even though the Internet seems to be displacing so much, there is room for the more primitive forms of communication in modern campaigns. If the Dunlop billboard near Birmingham is allowable in this category then it is one of the most effective pieces of communications I have seen.