Google today released the Search Engine Optimization Starter Guide (pdf), which details basic search engine optimization techniques. The 22 page guide discusses best practices for title tags, description meta tags, URL structure, site navigation, heading tags, quality content, links, images, robots.txt files, and links. According to a post on the Official Google Webmaster Central Blog, the guide was created because “we thought it’d be useful to create a compact guide that lists some best practices that teams within Google and external webmasters alike can follow that could improve their sites’ crawlability and indexing”. Google also said that they “plan on updating the guide at regular intervals with new optimization suggestions and to keep the technical advice current.”