Behavior overview report shows you which pages on your website are most popular. To access the Behavior overview, simply click on Behavior on the left sidebar and click Overview underneath it. This report gives you an in-depth glimpse of what pages users visit the most on your website. Like most reports, there will be a line graph at the top of the page. Rather than showing sessions in the line graph, the behavior overview shows the amount of pageviews you receive each day. There are also metrics like pageviews, unique pageviews, average time on page, bounce rate and % exit. You can also view which pages, page titles, search terms and event categories are most popular.
There are other behavior reports available such as the Behavior Flow, Site Content, Site Speed, Site Search, Events and AdSense. You can also create experiments and view In-Page Analytics.