This presentation provides an overview of keywords and how they are used in search engine optimization (SEO). It defines keywords as words or phrases people use in search engines to find information. Keywords are important for SEO because search engines use them to understand what content is about and rank pages accordingly. There are two main types of keywords - long-tail keywords which are multi-word phrases that target niche audiences, and short-tail keywords which are single words. Keyword research is important for determining which keywords a target audience searches for and including them in content to improve search rankings.