The ProQuest interface provides access to databases covering a variety of subjects, ranging from specialist subjects to much broader topic areas. You can access databases individually or search across more than one database at a time. It also provides access to ProQuest Central, which is a large multidisciplinary database and covers a wide range of subjects, so can be a useful source for a variety of subject areas.
Here are some of the key databases available via the ProQuest platform. You can see a full list of all the databases available through the platform by accessing any ProQuest database and then selecting the 'Change database' option on the ProQuest menu.