This is what happen on the first week of my internship. I was asked to do a presentation based on a book titled "Direct Marketing". I was a bit blur on what to do, but i use the wisdom i have to put up a good work. I did it with flying colors and got great feedback from the team. So here are some tips to prepare a good presentation, the key word is prepare then your slides should be based on "What-Who-Why-When-How" Some are needed and some are not, depends on what are your presenting.