This document provides an overview of marketing, including: 1. It defines marketing as "the activity, set of institutions, and processes for creating, capturing, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large." 2. It discusses the history of marketing from a production focus prior to 1920, to a sales focus from 1920 to 1950, to a value focus from 1990 to the current time period. 3. It outlines some core aspects of marketing, including satisfying customer needs and wants, marketing as an exchange process, and the four P's of marketing - product, price, place, and promotion.