In addition to teaching at the Law School, Professor Tyson teaches at the Wharton School in the Legal Studies, Accounting, Management and Real Estate Departments. After practicing law at the firms of Morgan, Lewis & Bockius in Philadelphia and McCutchen, Doyle, Brown & Enersen in San Francisco, he taught at the University of California - both at the business school (Berkeley) and the law school (Hastings and Berkeley). Several years ago, he was a Visiting Professor of Law at UCLA.