Hi Manushree, taglines are important because they help businesses convey what they are trying to sell to their customers. The knowledge of the vision and mission of the business is what makes a customer more inclined to purchase their product. Taglines are basically used in marketing materials and advertising the products. The idea behind the concept is to create a memorable dramatic phrase to attract customers to visit them and to make the company famous around with its own unique tagline. It is part of the brand identity that actually provides clarity about what you are and the reliable promises you make to your customers.It adds essence to a business, being a memorable description that becomes identified with a product overtime.