This is a slightly outdated “how to” on HubSpot. The concepts are totally valid, but the SERP layout has changed. Google has eliminated the right-column ad slots, as well, changed some colors, and introduced some new options.
Here’s the HubSpot document: http://ocgbpm.com/wp-content/uploads/2017/08/How_to_Use_Google_AdWords.pdf
AdWords certification is very important as well: https://support.google.com/partners/answer/3154326?hl=en
Right now (8/31/17), we’re establishing our Google Partner Credentials. Once that’s done, we’ll move forward with certifications.