Help? Can you explain what this mean?

Help? Can you explain what this mean?

PowerPoint presentation that you have given or experienced as an audience member that is guilty of some features of "Death by PowerPoint". If you've never seen one, describe any type of group presentation you have experienced. 

I don't know what it means about the presentation suggests the features of "Death by PowerPoint"? if it wrong or w if it worked or not.

I don't understand on How could the presentation have been improved?