The document discusses common marketing metrics used in the hospitality industry to measure the effectiveness of marketing efforts and optimize strategies. Some key metrics mentioned are occupancy rate, average daily rate, revenue per available room, customer acquisition cost, return on advertising spend, conversion rate, customer lifetime value, online reviews and ratings, social media engagement, and email open and click-through rates. These metrics help hospitality businesses assess areas like room utilization, pricing, overall performance, marketing campaign efficiency, advertising returns, website and campaign conversions, customer retention, reputation, social media reach, and email marketing effectiveness.