Your employees and their working hours are the foundation of your calendar. You can only enter appointments or offer online booking to customers if you also add your employees to the calendar.
Employees in the calendar
Your employees are displayed in the calendar:

Employees in online booking
Your employees are displayed to the customer in online booking:

Resources (equipment and rooms)
In fitness studios, cosmetics institutes and many other industries, equipment or rooms are often required that must be blocked in parallel with an appointment. These can also be added to the calendar to prevent double bookings.
Example of a calendar with employees and blocked rooms and equipment:

Articles about employees
Articles about rooms and equipment
Resources are equipment or rooms that are blocked at the same time as specific services to prevent double bookings.