Your landing page is where all of your active events are located. This is what visitors see when they click your Calendly link (e.g. www.calendly.com/yourlink).
On your landing page, you can remove the Calendly icon (1) and add your:
welcome message (4)
Your event scheduling page is what an invitee sees when they select an event from your landing page, or select an event-specific link (e.g. www.calendly.com/yourlink/eventname).
Here you can remove the Calendly logo (1) and add:
logo (by default, we show nothing) (2)
event type description and instructions (3)
time zone (4)
Set all your preferences just how you like and do Calendly your way.