If you've reached this page you've likely just just been delivered your completed ad copy and need some pointers on what to do next. Think of this as a "point in the right direction" and not an extensive guide on how to place Ads on all platforms. Grrrr... That's Zombish for 'have a look at this'.
We always recommend using Facebook for Business and Ads Manager, rather than just boosting a post from a personal or business page.
Get the most up to date details on how to create an ad and so much more, here.
And, as always, be sure you're following Facebook's Advertising Policies (they apply to more than ad creative, like targeting practices and landing pages!)