I was introduced to an important rule re. giving presentations when I was still at school: 1. Tell them what you're going to tell them. 2. Then tell them. 3.

I was introduced to an important rule re. giving presentations when I was still at school: 1. Tell them what you're going to tell them. 2. Then tell them. 3. Then tell them what you told them. Open with a clear introduction, no more than a few sentences, which covers everything at a high level and sets the scene. Then go through points in a logical order in as much detail as necessary. Finally, summarise as necessary to tie together all the points and link them back to the introduction. If someone has to read six paragraphs just to work out what the hell you're selling then you're doing it wrong. But that will be your cost, not theirs.