415, 462 - PowerPoints
Students in LIS 462 have two presentations which will probably have a visual component, and students in LIS 415 have a bibliographic instruction presentation assignment. Whether you do it with PowerPoint or some other presentation tool, you might want to take a look at tips for good presentations. I Google'd "good PowerPoint presentations" and came up with many suggestions. Two with which I agree generally are this one, which goes over two pages, and this one.