What is SEO?

What is SEO? And How works search engine optimization. Nowadays anybody wants to get information about anything so he goes to google and type queries and gets the information related to the query. So, guys if we are business owners and we have a presence on the internet and have a website. so would we not like to if any user searches about our related product and services and we rank on top results in google search. Not only Your website also your competitor’s website who gives the services related to your services and products shown in search results. And generally, whose website shows on the top results they get more leads sales and its help to grow business. basically, mostly the users click on the top results.