Responsive display ads automatically adjust their size, appearance, and format to fit just about any available ad space and improve performance. You upload various assets (images, headlines, logos, videos, and descriptions) in Google Ads and the optimal combination and size of assets will appear in ads across websites, apps, YouTube, and Gmail. You can also use Google’s library of images at no cost. Both new and advanced users benefit from responsive ads because they show as “native” ads and blend into the font and feel of the publisher’s site. Note: Responsive display ads will be replacing responsive ads as the new default ad type for the Display Network. If you have responsive ads running, you will be prompted to save them as Responsive display ads.