The entire process was incredibly both relaxed and thorough. I first had a phone screening-type interview which went well. Asked basic questions about myself and work related skills and accomplishments. Then I had a one on one in-person interview. I was skeptical as to how the interview process would turn out, knowing the how big and prominent Nielsen is as a company. I was asked typical interview questions, then just talked casually for about an hour afterwards. It really made me feel comfortable, not only with my future manager, but the overall company itself.