Marketing involves determining consumer needs and wants, and delivering products to satisfy them. It includes activities like market research, production, advertising, transportation, processing, packaging and selling. The marketing process aims to move products from producers to consumers through nine key functions: buying, selling, financing, storage, transportation, processing, risk-taking, market information, and grading/standardizing. It also adds four types of utility to products - form, place, possession and time utility - so consumers can use products in the way they need or want.