In order to make it easier to research and understand your target audience, Facebook recently enhanced the Audience Insights Tool. Previously, audience segmentation was only possible in the Power Editor or Ad Creation Tool and the resulting information was not extremely detailed. Now you can target your audience and easily discover insights about it before creating your first ad!
To get started – select Audience Insights from Ad Manager and decide whether to target your Facebook fans or all Facebook users (or a previously created custom audience). The basic details about your audience can be set once this decision is made.