Good presentations include stories. The best presenters illustrate their points with the use of stories, most often personal ones. The easiest way to explain complicated ideas is through examples or by sharing a story that underscores the point. Stories are easy to remember for your audience. If you want your audience to remember your content, then find a way to make it relevant and memorable to them. You should try to come up with good, short, interesting stories or examples to support your major addition, it is useful to think of your entire 30 minute presentation as an opportunity to “tell a story.” Good stories have interesting, clear beginnings, provocative, engaging content in the middle, and a clear, logical conclusion. I have seen pretty good (though not great) presentations that had very average delivery and average graphics, but were relatively effective because the speaker told relevant stories in a clear, concise manner to support his points. Rambling streams of consciousness will not get it done; audiences need to hear (and see) your points illustrated.
Any inclined line defines a plan image in the ground plane. The plane that contains both the inclined line and its plan image will be perpendicular to the ground plane, and its image line will be perpendicular to the horizon line (perspective rule 16 ). In addition, the plan line recedes to a vanishing point already established for horizontals (either vp 1 or vp 1 ), and this vanishing point will also lie on the vanishing line for the plane that contains the inclined line and its plan (perspective rule 14 ). Therefore the vanishing line for the plane that contains the inclined vanishing point ( ivp ) can be constructed as the vertical line through a horizontal vanishing point (diagram below).