What to do when you find out someone else presented your research without crediting you? One of my collaborators recently sent me a link to a video of someone presenting at a professional conference.  In the presentation, they use some of my published research that I did as an intern, including figures from my paper, but they never credit me in the presentation.

I have several questions about this:


Is this normal or is this something that I should be credited for?
Is it typical for someone to contact you before using your research in a presentation?
Is it worth contacting the company about this?


On the one hand, I'm happy that more people are seeing my research.  On the other, it feels a little upsetting to see my research getting presented without getting the credit for it.
You clearly said that your paper is published and has your name on it. No matter who presents this paper or this work, your name will be forever there. Everyone who will lookup this paper to find out more about this research will see that you are a co-author, regardless of who actually presented it. 

TL, DR; I would not worry too much about it.