Ad Hominem, the person presenting the argument is attacked. Ex: Trumps attacks on Clinton.
Ad Populum, most people believe it ans so it must be true. Ex: TRY NEW AND IMPROVED ________ EVERYBODY'S USING IT.
Appeal to Authority, because an authority figure believes it, it must be true. Ex: Obama believes Clinton will be a good president.
Appeal to pity, to seek agreement via sympathy. Ex: Any quit smoking commercial
Appeal to ignorance, something must be true because it hasn't been proven to be false. Ex: Smart Popcorn makes you smarter.
Yes, I have a degree in communications and worked in advertising. I hope we can chat to discuss the project in more detail. I hope to hear from you, thanx.