The two previous installments were the best-performing ad unit sizes and taken a look at how to design your ad units for good-looking ads.
So the video explains the placement of the add and where people, visitors tend to click based on heatmap and according to the post the best positions are;
- Above the fold of a page (the section of the page a user can see without scrolling)
- At the end of an article
- Aligned with content
Inside AdSense: Optimisation Essentials (Part III)