Define marketing and discuss how it is more than just "telling and selling".

Marketing is a social and managerial process by which individuals and organisations obtain what they need and want through creating and exchanging value with others. Value is the benefits to the customer in exchange of what they pay. The marketing process does not stuck only on the advertising. Marketing mix consists of 4P(s), which is Price, Place, Product, and Promotion. Telling and selling is only a small part of the promotion mix. Marketers observe, or research the trend that is happening at the interim, and deliver the product, or services to the customers. Understanding the needs of the customer is the hardest part here because trend changes everytime and marketers have to follow, so definitely, marketing is a deep word to talk about.
For example, Apple keeps on publishing their new product every year, while we can see the changes in features available.