A quick walkthrough of how to create event types.
Head over to the event types page, then click the New event type button in the top right.
You'll now be presented with the create event type dialog, which prompts you to enter in the basic information needed to get a working event type set up:
URL (e.g. cal.com/bailey/example-event)
New event type dialog
This is all you need to get an event type up and running, but you can configure additional settings for greater control. Read more about that here.