This. Just to add a couple resources: https://static.googleusercontent.com/external_content/untrusted_dlcp/www.google.com/en//webmasters/docs/search-engine-opti

This. Just to add a couple resources: https://static.googleusercontent.com/external_content/untrusted_dlcp/www.google.com/en//webmasters/docs/search-engine-optimization-starter-guide.pdf https://static.googleusercontent.com/external_content/untrus... , http://moz.com/beginners-guide-to-seo http://moz.com/beginners-guide-to-seo