The first Peruse screen (after the News) allows you to choose a database. Peruse contains a large number of bibliographic databases that contain titles, authors' names, and sources for journal articles. Many of the databases also include cataloguing information like subject headings. Some of the databases include abstracts in addition to the bibliographic information.
Note that some databases are divided into different time ranges.
Just click on the desired database to select it. You can click on the i to the left for more information about a particular database.