Adding Images On Homepage

In looking at the NewMedia theme, it clearly shows small images next to each title under “Featured Articles” in the left navigation bar. Is there a plug-in I need to add images to accompany each of my blog post titles? So far, I’ve not been able to find the way to do it thru the dashboard. I checked with iPage’s WordPress support; they suggested I ask for help on this particular issue thru this forum.

Here’s a link to my site: https://www.kimmunitee.com/

By the way, I’m getting compliments on the fresh, clean look of NewMedia.