If you’re new to the site, this page contains a few recommended articles that will help you get started.
If you want to learn about mental performance:
If you want to learn about logical fallacies:
If you want to learn about social psychology:
If you want to learn about practical philosophy:
Note that if you want to just get the key takeaway points from an article, you can scroll to the bottom of the article where there is a section called “summary and conclusions”.