[2] He is a leading scholar of civil procedure and federal jurisdiction.
[5] Cooper's first teaching job was as an adjunct professor at Wayne State University in Detroit.
[3] At Michigan, Cooper teaches civil procedure and jurisdiction and choice of law, and other courses.
[3] Cooper is the co-author, with Charles Alan Wright and Arthur R. Miller, of the first, second, and third editions of Federal Practice & Procedure, the leading legal treatise on federal jurisdiction and procedure.
[2][3] Cooper has been a member of the Council of the American Law Institute since 1988 and has served as adviser to the ALI Federal Judicial Code, International Jurisdiction and Judgments, and Transnational Procedure projects.