Professor Gruber taught courses related to criminal law and critical theory. Professor Gruber earned her undergraduate degree in Philosophy at the University of California at Berkeley, graduating summa cum laude, Phi Beta Kappa, and with departmental honors. She then attended Harvard Law School, from which she graduated magna cum laude, and served as an editor on the Women's Law Journal and International Law Journal. After law school, Professor Gruber clerked on the U.S. District Court for the Southern District of Florida and then served as a felony trial attorney with the Public Defender Service in Washington, D.C. and Federal Public Defender in Miami. Prior to her appointment at Iowa, she was a founding faculty member at Florida International University College of Law, South Florida's first public law school.