According to Olivia Mitchell, a presentation trainer, limiting how much you say may help get your message across more effectively.
Mitchell says, “It’s a brutal truth – but the more you say – the less your audience will get.”
Mitchell suggests that you edit your presentation with a fine-toothed comb and cut down any bulleted lists to no more than 3 items each. She says that 3 items are easy for both the presenter and the audience to remember. If you include more items, the first items on the list will most likely be forgotten.