We've highlighted numbers in red in the screenshot below to help understand the basic functionality.
1 - Search for an event using a name or email by typing the information.
2 - Use the icon with the "x" to make dates unavailable (Blackout)
3 - Sync your calendar to external devices such as smartphones and other software. (ical, Google calendar, Outlook, etc.)
4 - Create a new event.
5 - Use the arrows to go back a month and forward a month.
6 - See events on your calendar. Double click to get more information and/or edit.
What do the colors of the events mean?
A footer at the bottom of the calendar will show different colors to represent availability, blacked out dates, as well as different event types.