Some of the advice in this post is pretty good, but not all of it (though to be fair it’s a matter of perspective). Some speakers have a single presentation they rehearse and hone over time. But my own style (and to be frank, the style I prefer to watch as well) is to create a new presentation every time. This is where some of the best advice in the post comes in. Like any speaker, I have a large supply of ideas, explanations, stories, etc (comedians would call them ‘bits’) and I draw on these as needed. But every presentation needs a single ‘big idea’ and this I think is the thing that should be different, where possible, for each talk.
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