Baum, Lawrence.The Supreme Court. Congressional Quarterly, 2003. History, operation, function, plus effects of decisions; bibliography, glossary.
Cooper, Philip J.Battles on the Bench: Conflict Inside the Supreme Court. University Press of Kansas, 1995. Notwithstanding the title, this fine historical study underscores the level of civility with which justices operate as compared to other branches of government.
Irons, Peter H.A People's History of the Supreme Court. Viking, 1999. Surveys representative cases from the past 200 years to show the Court's effect on everyday lives; for general readers.
Jost, Kenneth, ed.The Supreme Court A to Z. Congressional Quarterly, 2003. Background on landmark cases, biographies of judges, and definitions of legal terms.