F&B services play a vital role in the hospitality industry by preparing, presenting, and delivering food and drinks. They are crucial for guest satisfaction, revenue generation, differentiation from competitors, and enhancing the overall atmosphere. F&B services functions include food and beverage preparation, delivery, menu planning, customer interaction, hygiene, cost control, and staff training. There are two types of catering establishments - commercial, which operate for profit like restaurants and hotels, and non-commercial, which prioritize service over profit like schools and hospitals.