Simon’s using a Google Smart Display campaign to build out his ads. What benefit do Google Smart Display campaigns give Simon?

His ads are automatically generated from Google’s content providers, matching his website’s data feeds to the most relevant images and descriptions available.
His ads can be manually built using his custom-sized headlines, descriptions, logos, and images
His ad formats are lifted directly from his data feeds, allowing him full control over their size, placement, and screen orientation.
His ads are automatically generated from the building blocks he provides, like headlines, descriptions, logos, and images.