This document provides an introduction to the topic of green marketing. It defines green marketing as marketing of products and services that are presumed to be environmentally safe. It discusses the evolution of green marketing from ecological to environmental to sustainable green marketing. The importance of green marketing is highlighted as it offers business benefits like cost savings and new market opportunities. Golden rules for successful green marketing are listed, including knowing your customer, educating them, being genuine and transparent. Examples of big companies that have adopted green marketing strategies are provided, like Bank of America, GE and Starbucks. The green marketing mix of product, price, place and promotion is explained along with additional social marketing elements.