This document provides an overview of search engine optimization (SEO) best practices. It defines SEO as affecting the visibility of a website in organic search results. It notes that SEO is not just submission to search engines, link building, or off-page work, but requires ongoing quality content, on-page optimization, and social media engagement. The document outlines Google's ranking factors and how search engines work by crawling websites. It emphasizes the importance of publishing informative on-page content, optimizing on-page and off-page elements, and using social media to boost SEO.