Facebook Ads are advertisements that businesses can display on the Facebook platform to reach their target audience. The ads can appear in various locations on Facebook, such as in the news feed, on the right-side column, or in Stories.

Here's how Facebook Ads work:

1. Campaign creation: To get started with Facebook Ads, businesses create an account and set up a campaign. This involves defining the target audience, setting a budget, and choosing the type of ad and placements.

2. Audience targeting: Facebook offers a range of targeting options, including demographics, interests, behaviors, and location, allowing businesses to reach their ideal audience.

3. Ad creation: Businesses create ads that consist of a image, video, or slideshow, and a headline and description. The ads are designed to be appealing and relevant to the target audience, and encourage users to take a specific action, such as visiting a website or making a purchase.

4. Ad placement: Facebook uses an auction system to determine where and how frequently ads will appear. The ads with the highest bids and relevance scores are more likely to appear more frequently and in more prominent locations.

5. Billing: Facebook Ads are billed on a cost-per-click (CPC) or cost-per-impression (CPM) basis, depending on the objective of the campaign. The business sets a daily budget for their campaign, and the ads will stop displaying once the budget has been reached for the day.

Facebook Ads provides businesses with a powerful way to reach their target audience and drive desired outcomes, such as website traffic, leads, and sales. Businesses can track the performance of their ads and make adjustments to improve their results over time.