Business presentation skills are related to your topic. And yet - as everything here has its subtleties, you cannot know unless you read one book and another and watch at least some examples of successful and effective presentations. What are the possibilities? Well, they are not much. One of them is to present every time when you have opportunity to do that. If this is difficult or happens not too often, then there are places that offer this kind of training for determined charge, of course. If you choose this way to improve business presentation skills, there are very good place to pick. But first you should look for offer related to your subject.  Presentation courses that offer training for several days are not very effective. For a few days will not acquire the required business presentation skills. Classes may be more scattered, but the important thing is to practice continuously. Investments surely worth it, because university and schools not always give needed attention and practice. However, as it was already mentioned, big businesses companies have a condition for future employees to have the necessary business presentation skills.