Imposing restrictions can often make things more interesting. When it comes to presentations, one such example is Pecha Kucha. The idea behind this format is that a speaker only gets to show 20 slides - and that the slides are moving forward automatically after 20 seconds. So all in all, you have 6:40 minutes for your entire presentation.
I've read about Pecha Kucha but hadn't seen it live until a few weeks ago, when I attended a Pecha Kucha night in Stuttgart. It was very interesting to see how the 10 speakers dealt with the restrictions.
