My second engineering diploma is in human factors / ergonomics. My studies in this field were at the Department of Ergonomics and Psychology of the Budapest Technical University. I had a great time studying there, the atmosphere was collaborative, the teachers / instructors were knowledgeable, and they were open to learning more - from me, too.   Basically, human factors engineering aims at designing / making usable things for people.     As an example of what this field is like, read a paper which I wrote about metaphors, user interfaces and the Internet.