The concept of a caricature is very interesting. By changing the reality or presenting it in a more grotesque view, one is exposing the aspect of the reality that would otherwise be unseen from a more "realistic" picture or photograph.
A few caricatures of the politicians from Russian caricaturist, Denis Lopatin.
Fidel Castro and Che Guevara:
American version of the above:
Russian President Medvedev and Russian Prime Minister and ex- and future President, Putin:
Leaders of post-revolutionary Russia (the titles say: "bald-hairy-bald-hairy-bald-hairy"... the leaders are: Lenin, Stalin, Khruschev, Brezhnev, Andropov, Chernenko, Gorbachev, Yeltsin, Putin, Medvedev, Putin, Medvedev, Putin, Medvedev):
Putin and Medvedev, again:
Two socialists and a Churchill: