Steve Campbell is Distinguished Professor of Mathematics. He has done research in functional analysis, linear algebra, numerical analysis, differential equations, and control theory. He is a Fellow of SIAM and the IEEE. Having served 10 years previously as Director of Graduate Programs for the Mathematics Department, he has a good overview of graduate education in the US and the application process.
When not working with students he likes to scuba dive (he is a PADI Divemaster), fish, read, and paint.