Cookies enables me to see how the site is used, what pages are viewed the most, how long our users are on the sides, etc.
The result of this tells me what type of content I should have on the website, and what you as a user requests and find interesting.
For this the page is using Google Analytics and WordPress Stats.
A cookie is a small text file stored on your browser in order to recognize your computer on subsequent visits. Cookies are not active files, they can not develop virus or track content on your computer. The only thing they do is to send anonymous information back to us on the visit date, duration, etc.