Simon Raybould makes the point that, in its simplicity, "All a presenter has to do in a presentation is think of two things: What do I need to tell my audience? and How do I need to tell them it?"
He goes on to underline the importance of filtering your material (on the basis that 'less is more') and then checking your assumptions, on the basis that you, the presenter, are likely to know more about your subject than those listening - so make sure you take nothing for granted and open-up your jargon, workings and assumptions.
