Calendars can be viewed and managed in a variety of ways. These include the option to view by day, work week, week, month, and schedule. Views can be changed dynamically by clicking on each of the options.
Individuals with shared or delegated calendars are able to switch the focus to just their calendar or add in the view of the other calendars they have permissions to by selecting the calendars under My Calendars. When switching back and forth, be sure to double-check that you are modifying the correct calendar.