There are a variety of ways to film a video presentation or interview, below are a few examples.
Example 1: Straight to camera, text appears beside presenter
The above style is powerful and effective, but it is not easy for the presenter, to come across so well Mr Postulski had to learn his script thoroughly.
Example 2: Off Camera, text beside
Here the speaker is looking off camera as though speaking to an interviewer. Judge Arbuthnot is in fact reading from at a laptop which is displaying a French Translation of her speech. Occasionally you can see an edit, in the above example a swift screen wipe.
Example 3: Informal interview, two camera shoot
The example above is shot with two cameras, I asked the interviewee questions who answered without preparation, where necessary I coached the speaker to enable him to express himself effectively. An assistant filmed simultaneously to enable a seamless edit of the interview omitting my questions.
Example 4: Two presenters
The above video shows two presenters delivering material together. The presenters had notes on a laptop positioned alongside the camera. Following this brief intro are some related demonstrations.
Example 5: Powerpoint presentation
In this example the presentation was given to an intimate audience, it was filmed with two camera and has the powerpoint slides edited into the talk.