There are several recommended articles out there that you can read in order to understand deeper about search engine optimization (SEO). Here are some of the link:

  1. SEO for WordPress
    There is no doubt or debate that WordPress is one of the best content management system (CMS) to go to if you want to target the SEO. This article helps us understand how to optimize WordPress SEO.
  2. Keyword Research for SEO
  3. SEO Copywriting
  4. Site Structure