Posters can be a way to express your passions, reveal your tastes or, in the case of these clever designs, advertise your pet peeves. Most of the time designers are creating these wall-mounted marriages of text, colour and shape for others and with their preferences in mind.
But occassionally, talented individuals design them for themselves and for others like-minded. These can act as a creative catharsis for frustrated illustrators who are fed up of never getting it quite right for everybody else.