This document provides an overview of core marketing concepts including markets, needs and wants, value, exchange, and demand. It defines markets as consisting of consumers, businesses, and being local, national, or global. Needs and wants are categorized as stated, real, unstated, delight, and secret. Value is defined as a product's ability to satisfy consumer needs and wants based on their perception. Exchange requires at least two parties, each with something the other values, and freedom to accept or reject the offer. Demand types include negative, non-existence, latent, irregular, and full or overfull.