SEO or Search Engine Optimization is a process to gain the visibility of both search engine users and search engines. Unlike humans, Search engines often can’t understand or grasp a website. If SEO is implemented, it helps the search engines see what a web page is about. With the help of SEO, your website will be easily visible on search engines. There are many SEO service providers. But, if you can’t spend their costs, read the best SEO books from the links on the right.