The first round was an in person interview. They just go through your resume with you, ask about different experiences, and things like that. They took a pretty long time to get back to me after the first round (like a whole month).
The second round is a phone interview. I had to prepare a presentation, and I just talked about a previous school project I worked on--the design process, the final result, the different problems I ran into while coding it. The phone interview was almost an hour long.