Control / Feedback Theory I am more interested in the engineering perspective of this topic, but I realize that fundamentally this is a very interesting mathematical topic as well. Also, at an introductory level they would be very similar from both perspectives. So, what are some good introductory texts on Control/Feedback theory for an advanced undergraduate/early graduate student?
Thanks!

I teach an engineering undergraduate course on process dynamics and control and a graduate level course on dynamic estimation and control and have used a variety of resources to introduce Control/Feedback theory. Below are resources for introductory material for chemical engineers at an undergraduate and graduate level, respectively.
D.E. Seborg, T.F. Edgar, E.A. Mellichamp, F. J. Doyle, Process Dynamics and Control, 3rd edition, John Wiley & Sons, NY, 2011.
J.B. Rawlings and D.Q. Mayne, Model Predictive Control: Theory and Design, Nob Hill Publishing, 2009. (Full text PDF download).
