Re: How do i Start Google ad words....?
You should first read this PDF to get the basic knowledge of what Google Adwords is:
Then, there are numerous user articles here in the Community from beginners to advanced level, which you can read to grasp the indepth of Google Adwords: https://www.en.adwords-community.com/t5/User-Articles/bg-p/User_Articles
You can also go through this Youtube Google Ads channel for more details:
Best of Luck!