Whatever its form, it has three qualities: An effective attention getter is short ... (which is obvious). In a presentation with slides, it can usefully show the structure of the body on screen.

Presentation slides are optional ... On each slide, state your message as a short sentence (on a maximum of two lines, corresponding to about 10–15 words), normally in the title area.

Plan your presentation – think about how to structure your ideas. Prepare cue cards so that you are not tempted to ‘read out’ your talk. Practise your presentation - the more you practise ...