Tasks - List View
List View is the first view on Tasks. It shows all of your tasks in order. Calendar events are not shown on this list. You can toggle to show/hide completed tasks. When you swipe left/right, you'll move between lists.
Tasks - Day View
Day View shows all the tasks in that day. On timeline at the top, each rectangle represents one hour. Tasks will stack up from the bottom and it'll show relative height with your most crowded hour. Calendar events will show as a line in the middle. If it's all day event, dot will appear next to the date. All day tasks are shown at the beginning of the day.
Tasks - Week View
Week View shows the tasks on that week. You can setup which weekday to start your week. Also you can setup to show next 7 days in week view. Under each day, task is shown as colored square. Calendar events are shown with colored circle. Both follow colors of lists/calendars. You can swipe left/right to change dates (same with day and month views). Also if you tap a date, you'll be scrolled to that date and it'll be selected. Adding a task with contextual option turned on will make due date to this date automatically.
Tasks - Month View
Month View is similar to week view. On landscape view, you'll see more compacted month view. Tapping a date will select the date just like week view and scrolling will move months as expected.