Should you put page numbers on PowerPoint slides?

I think yes, but really tiny ones, in a color with a very low contrast with the background. Standard PowerPoint templates put huge page numbers, dates, and other graphical distractions on every page. It looks ugly, and having a visible counter running on your pages might make your audience wonder how many more numbers there are before the end.
Why still put them on (in a very small font)? It makes it easer to discuss comments/improvement suggestions on your slides, it is easy to run a meeting with printouts and related to that, it makes it easier to put your print deck together if you drop your pages on the floor.

The summary page that does not stick

Many presentations start with a summary page, and most of them are stuck in the middle. They give a bit more information than "I am going to tell you why this is the best investment in cloud computing that you can make" and a bit less information than what is needed for the message to stick (the audience internalizing the logic in their head, and more importantly, their heart).
Worst case scenario: you give the presentation twice: spending 20 minutes on the summary page (which the audience does not understand), then repeating the whole story in the presentation (which bores the audience that misses the details and nuances "oh, we covered that already"). Blackberry on, attention off.
So, have the courage to keep the summary page really, really short. On the first page, tell the audience vaguely in what "box" they should put you in. "We do cloud computing platforms". Then use a fast-paced sequence of slides to explain the idea that you try to get across. So, now your audience knows, feels, and understands.
After this, the more traditional stuff can come in, even summarized by an agenda page or summary.

Six-figure public speaking fees

Kaitlyn Cole of OnlineUniversities.com research a top ten of the world's best paid public speakers.
Some of these amounts are pretty high, but hey, hiring a celebrity singer to your party will also cost you dear. Scott Berkun talks about public speaking fees in his book Confessions of a Public Speaker as well.
what do you think, value for money?

Colors mean different things in different cultures

A nice diagram on the blog Information is Beautiful (original post). Something to take into account when picking your next color template. click the image for a larger picture.

Kill procrastination

Productivity and creativity have a very weak correlation with the number of hours you put into your work. This presentation provides some useful lessons:

De-cluttering spaghetti charts

Sometimes, complexity is a visualization issue. When you design your slides, save the audience some work and do the disentangling for them. Example: there are 2 approaches to drawing a technology architecture:
  1. Start with the boxes, then draw the links
  2. Start thinking about the links, then draw the boxes
The second approach always gives a better result.
Thank you Jared Chung for emailing these charts to me in response to the post about the U.S. Army spaghetti chart (in a slightly different context though).

Location-based memory

The brain works in funny ways. Recently, I snapped a picture with my mobile phone of a busy and messy whiteboard after a long team discussion. It didn't matter to me that I will not be able to read most of the text (poor handwriting, poor phone camera). Because of the location of the scribbles on the board I was perfectly able to recall the entire discussion without reading a single word.
What happened? The brain had assigned its memory of the entire rich discussion we had to locations on the whiteboard. "Going to a place" is enough to unlock the memory.
Presentation lesson? Credit to management consultants. Sometimes it is good to have that busy chart with all strategic options on one page, it does not have to be pretty, the axes you use to define that 2x2 framework do not really matter. The chart will become the mental map of the discussion. Even when you improve it later on, chances are that your audience will ask you: "hey, that's the fat-cow option in the top right in our previous diagram isn't it?"

Over-used adjectives

Create a slide that makes your audience feel and understand that something is extraordinary, huge, massive, revolutionary, game-changing, and/or enormous instead of writing these over-used adjectives in a bullet point.

In defense of the U.S. Army spaghetti slide

This PowerPoint slide by the U.S. Army is making the rounds on the Internet to ridicule ineffective presentations that stifle creativity and decision making.
The article in the NYT does not actually talk about this busy slide specifically, it attacks the use of bullets points and the fact that the majority of time spent by staff in corporate/army headquarters is wasted on producing PowerPoint slides. Seth Godin is repeating today once more why bullet points are bad for you.
The spaghetti slide itself is not that bad, at least that is my opinion.
It makes the point that things are complex, that issues are related, all contributing to a highly unpredictable cause and effect sequence. Almost like the myth of chaos theory, and the butterfly in China that can cause a hurricane on the other side of the planet. Pretty good slide to visualize that.
I guess the source of the slide must have been some management consulting report that applied the technique of Business Dynamics to a complex problem (I recognize the many loops having used the tool in my previous life as a McKinsey consultant).
What is Business Dynamics? Business Dynamics tries to apply the physics of systems theory (electronic circuits, weather, ocean waves, etc.) to business. Complex problems consist of a number of forces. Forces influence each other. Forces can be good and bad, some cancel each other out, some reinforce each other. Everything is related to everything.
In some cases it is possible to model all these forces in a computer program and you get your hands on a very powerful tool: software can make simulations of what happens if you give the system 1 shock by studying the 2nd, 3rd, 4th, 7th order effect of your action.
My guess is that's what the U.S. Army was trying to do, and the chart cited here is simply a screen dump of the output pages of these Business Dynamics tools. In itself, a sensible approach to the problem. Not sure whether it delivered the solution though.
A better way to present it could have been to start with the overwhelming complexity of the overall problem (serve the spaghetti), after which you pick one counter-intuitive loop and show how a positive action can actually do serious damage to the objective of your mission.

Presentation lessons from TEDx Tel Aviv

I had the privilege to attend TEDx Tel Aviv. It was a wonderful day. Some (random) observations:
  • 18 minutes are great: short enough to keep the audience attention, but long enough to cover the most complex subject material. Anyone can present their idea in 18 minutes, if you can't, it's the presenters fault, not the audience's intellectual abilities
  • Personal stories are incredibly powerful, especially if they connect to the interests of the audience. "The doctor told me that my daughter will die soon. I did not accept this". You are on the edge of your seat.
  • Polish is not everything. Imperfect English, glitches, as long as your story is passionate and genuine, your audience will forgive you.
  • Many different uses for slides, none of them were speaker notes/bullets: 1) relative proportions between numbers [$250m versus $250bn), 2) setting the mood [screen shots of mountain bike trip surroundings], 3) functional video [mosquitos getting zapped by lasers]
  • Building on that. Slides can be incredibly simple and still be effective. And I mean even more simple than stock image + a few words. 
  • To keep a conference day interesting you need to shift gears all the time. Spectacular presentations, humor, emotional/touching content. Variety keeps up one's attention
  • Related: the power of an emotional ice breaker presentation. My organizational behavior professor in INSEAD was a master at this: start a session with a deeply emotional topic or question, and it makes the audience forget their usual defenses, makes them more receptive/open to subsequent content. Hard to explain why, but it works.
  • Unlike you, yourself, the audience is not really interested in your personal background and history, they want to learn from your ideas and perspectives. Talk less about yourself, talk more about what the audience can learn.
  • Props are great (bottles of algae for example). 
All in all this day was a great presentation experience. Hardly anyone in the audience left the presentation hall, hardly anyone was checking email on their phone/laptop. It is possible to stay a focussed listener for an entire day.

Looking back at the UK election debate

I could watch the latest UK election debate live in Israel on Sky News and was fascinated to see these professional debaters in action. In the House of Commons, the UK parliament, debates are very lively and real. In this televised election debate I was a bit disappointed; candidates were hardly listening to one another and tried to find anchor to revert back to their scripts to make a key point.

Where does it get interesting and convincing? When the debaters go off-script and truly try to convince their audience from the heart. They should have the courage to debate like they do in parliament, and stop trying to nail that sound bite. Dry statistics do not move crowds.
The other interesting thing I noticed is the power of the face expression when an opponent makes a point caught by the ever-present cameras. Face expressions reveal one someone thinks an opponent made a really good point.

Drawing stick figures

The original PowerPoint stick figure (screen bean) clip art has been overused (although I miss him sometimes). Hand-drawn stick figures can be the basis for an original presentation. This small presentation by Betsy Streeter provides some useful (and funny) suggestions on how to draw them.


Thank you Matt Jahl for pointing me to this.