I've talked to several professors this summer about how to add a logo or graphic to the top of a slide show, to help "brand" the document. Here are a couple screenshots to illustrate what I mean:
In both of these examples, the graphic in question (the blue box in the first example, and the Wolfram logo in the second example) appears at the top of all
of the slides, making the document instantly recognizable as the slides are flipped through.
The way to do this for your own documents is to use DockedCells. You can read about them in the documentation, but to make this easy, I've provided a notebook to help you add DockedCells to a slide show template. Simply download the CreatingASlideshowWithADockedCell.nb from here
, open it up, and read through the instructions. The file contains a sample graphic, but you can use your own graphics by dragging and dropping them in the appropriate section in the notebook or by using the Import command. At the end, you should have your own, customized slide show template to use for presentations.
I hope some of you find this useful, and if you run into any trouble, reply to the thread and I'll help out.