Google Display Ads are a type of online advertising that allows businesses to display visually engaging advertisements across a vast network of websites, apps, and video content that participate in the Google Display Network (GDN). These ads can be in the form of images, videos, or rich media and are displayed to users based on various targeting criteria such as demographics, interests, and browsing behavior. Google Display Ads are effective for building brand awareness, retargeting previous visitors, and engaging with customers across different stages of the buying funnel.