This document provides an introduction to search marketing and search engine advertising. It discusses how search engines work by collecting information from the web and indexing it so it can return relevant results to user queries. It also describes different types of paid advertising programs available on search engines like Google AdWords, including pay-per-click and cost-per-thousand-impressions models. Finally, it gives guidance on setting up an AdWords account and campaign, including defining goals, audiences, and key metrics like cost-per-click and quality score.