For those marketers, analyst, or even people who are interested in learning what Google AdWords is all about, you have to check out the learning center that is offered from Google.
Obviously, Google AdWords is a paid per click (PPC) management tool, where you can set your keywords, creatives, links, ad groups, etc. Although the concept of PPC is pretty simple, when you consider all the factors around costs, creatives, setting up different ad groups/campaigns, and setting up links to different landing pages, it could get pretty confusing for people who are new to this.
I highly recommend going through these learning materials which are offered through multimedia or text. It is totally free, and it only requires your time.
Don’t forget to take those quizzes as it will help you to grasp the concept even better.
Google AdWords Lessons Catalog