The calendar style uses a conventional monthly calendar display with events listed within the cells (days) of the calendar.  This style uses its own dedicated page for the calendar's display.

The countdown style uses one of a variety of phrases to countdown to events.  This style is usually displayed in the event box on the right hand side of both public and non-public pages.

The information you add to the "Title" field is only used in this wizard for indexing purposes.  It does not appear on the users' side.

To illustrate these items, let's take an examination as an example.  Let's call it 'the end-of-semester maths exam' and that we are 3 weeks away from the event taking place.

We first choose the type of countdown format we want that is appropriate to our event, and then write the countdown string need to match the format.

Taking each format in the order it's presented in the form, we have the following:

The countdown string format '... due in x [units]' (e.g. ... due in 3 weeks) is not suited to our event so we'll ignore it here. (Of course, if our event was the date when an assignment was due to be handed in, this countdown string format would probably be our favoured choice)

The 'x [units] to...' format is appropriate to our event.  So, we'd write, as our countdown string, 'the end-of-semester maths exam'.  The resulting output would be '3 weeks to the end-of-semester maths exam'.

The '... goes off offline in x [units]' is not really appropriate for our event so we'll ignore this one.

The '... is in x [units]' is appropriate for our event, so if we want to use this format, we'd write, as our countdown string 'The end-of-semester maths exam'.  The resulting output string will be 'The end-of-semester maths exam is in 3 weeks.'

This non-compulsory form item is for adding more detail to an event.  For example, if our event was a end-of-semester maths exam, we might want to provide additional information such as the place of the exam, the time of the day when it starts, its duration, the topics covered in the exam, and any special rules regarding the use and type of calculators for the exam. 

This information would be added to the 'Details' box.  Its presence in the output would be signalled by a 'More' link appearing after the countdown string.  When the user clicked on that link, the content of the details box would appear.

If you select "Public view", then the event will appear to everyone viewing the site, whether they are logged in or not.  In this regard, "Public view" overrides all allocations to selected audiences.

If you select one or more defined audiences - not including "Public view", then the event information will only be visible to people in those audiences you select once they are logged into the site.