Click on the icons next to the Views heading.
The following views are available for Product Research:
Overview: a summary of the listings and sales found by your search.
Listings View: a list of transactions and listings that match your search.
Trend View: the results of your search displayed on a timeline.
Top Sellers View: a list of the sellers whose listings match your search.
International View: the results of your search sorted by region and by eBay site.