Newsletters can keep your customers and bring in new ones. It is the customer who determines what business is. It is the customer alone whose willingness to pay for a good or a service converts economic source into wealth,things into goods. And what a customer buys and considers value is never a product. That is what a product or service does for him or her.
Marketing is the distinguishing unique function of the business.
Any organization that fulfills itself through marketing a product or service is a business. Any organization in which marketing is either absent or incidental is not a business and should never be managed as if it were one. He guides people on how to be successful in their professional and personal lives.