The single most common mistake public speakers make in creating a speech or presentation is to think of it as an information dump, and to try to tell the audience a lot of information about something. 

A speech is a very poor way to convey information.  We can only remember 3 or 4 things at a time, so if you start speaking with the intent of giving us information for an hour, say, you’ll tell us many more things than that, and we’ll forget most of them.

This is a waste of everyone’s time.

There is a better way. 

Instead, think of a speech as a decision-making journey you take the audience on.  You want to change the audience’s mind about something, right?  That’s why you’re there, in front of them, talking.  So respect their decision-making process.  Allow them to get your story in an order and structure that makes sense for their needs.

Audiences come into a speech asking why?  — why is this important, why should I care, why should I pay attention?  So your first step is to answer that question, quickly, in the first 3 minutes or so.  “We’re here today to talk about how the yak butter production levels are falling – alarmingly.  I’ve got an idea for how to fix the problem.”

Note that you don’t preview the entire solution at first.  Why?  The audience isn’t ready to hear it yet.  So just answer the why question at a high level. 

Then take them on the journey through the problem you’ve identified.  The goal is to take them on the decision-making journey from why to how.  If you answer the why question well, and then dive into an interesting problem the audience has, and then discuss your solution (this is where you get to talk about all that interesting information – the audience is now ready to hear it) and end with what you’re all going to do about it — your audience will be happy bunnies because their needs have been respected. 

If you do all that with some intelligence and passion, the audience will ask “how” questions at the end – how can I get started?  How can I make this work for me?  What would a yak butter production system such as you’re describing cost?

That’s it – why to how.  That’s your job as a speaker.  Not a data dump.  Enjoy.