What makes an effective presentation? I was talking about that in a presentation clinic I ran for a company recently.  One guy, Simon,  was holding onto the idea that people need the full data more than anything else otherwise they would question his research. Simon was one of the brightest guys I’d ever met. He’d written his presentation like a huge document and wanted the audience to get all the information because ALL of it was really important.  79 slides full of text. 

Too many people do the same old thing when they present. And somehow they expect the audience just to lap the information up. But the poor old audience just gets overwhelmed with information. How do we make presentations more effective?