Sales data refers to the information collected about the products or services sold by a business. This data includes details like the number of items sold, the revenue generated, and the time period of the sales. By analyzing this information, companies can understand customer preferences and identify trends, helping them make informed decisions about inventory and marketing strategies. Businesses often use tools like spreadsheets or sales software to track and visualize their sales data. This allows them to spot patterns, such as peak sales seasons or popular products, which can guide future planning and improve overall performance.