The 'detective story' principle and puzzle-solution formats

The last two posts have featured comments on using slides and visual aids by the late Sir Lawrence Bragg.

But he also had a good understanding of the effectiveness of story-telling and leading audiences to the solution of a puzzle in presentations:

'There is a most important principle which I think of as the 'detective story' principle. It is a matter of order. How dull a detective story would be if the writer told you who did it in the first chapter and then gave you the clues.

'Yet how many lectures do exactly this. One wishes to give the audience the aesthetic pleasure of seeing how puzzling phenomena become crystal clear when one has the clue and thinks about them in the right way. So make sure the audience is first puzzled.

'A friend of mine, a barrister, told me, that, when presenting a case to a judge, if he could appear to be fumbling toward a solution and could entice the judge to say "But, Mr. X, isn't the point you are trying to make this or that?" he had as good as won the case.

'One wants to get the audience into this frame of mind, when they are coaxed to guess for themselves what the answer is. Again I fear I am saying the trite and obvious, but I can assure you I have often sat and groaned at hearing a lecturer murder the most exciting story just by putting things in the wrong order.'

(From Advice to Lecturers: An anthology taken from the writings of Michael Faraday & Lawrence Bragg, London: The Royal Institution of Great Britain, 1974, ISBN 07201 04467).

Although Bragg was dealing here with the overall structure of a lecture or presentation, much shorter puzzle-solution formats are also one of the main rhetorical techniques discussed and recommended in my books, and I posted some video clips of them triggering applause HERE.

Standing ovation for Gordon Brown after anecdotes about Reagan, Cicero and Demosthenes

A couple of days ago, Gordon Brown took time out from local problems, like today’s by-election, to make a surprise appearance at the TED Global conference, and one can’t help wondering if the chance to give a lecture in Oxford marked the official start of his exit strategy into teaching that he was dropping hints about a few weeks ago.

You can see the whole of his TED performance at the bottom of this page and inspect a brief review of Twitter responses HERE.

Readers of my books will know that I give great emphasis to the importance of anecdotes in effective speeches and presentations, and there are two nice examples of this in Mr Brown's speech.

The first one came as he tried his hand at a bit of standup with this story about what Ronald Reagan is alleged to have thought of the then Swedish prime minister, Olaf Palme:



Then, right at the end came another anecdote involving a contrast between the way audiences used to respond to Cicero and Demosthenes. Brown firmly identifies himself with the latter and gets a positive reaction that doesn’t often happen to him outside Labour Party conferences – a standing ovation - and it doesn't often happen to anyone in Oxford either (or at least, I never got one when I worked there).



The whole unedited 16 minute speech can be watched below. And, as you'll see from the first few minutes, someone must have advised Mr Brown that, if you must use PowerPoint, you can't beat genuinely visual slides like pictures: