The Guardian isn't really posh (I suppose it is posh in comparison to The Sun or The Mirror or Chat Magazine
) I'd say something like the Daily Mail is for posh people (but stupid posh people who need to hear about immigration and Princess Diana every five seconds). The Guardian is more kinda arty. They always have cult Russian film posters and things, and, of course, they have Charlie Brooker doing a column in the G2 every Monday.