Comparative constitutional law is a developing area of legal scholarship. One sign of this development is the recent appearance of two casebooks, both published in 1979. Comparative Constitutional Law: Cases and Materials by Mauro Cappelletti and William Cohen, focuses primarily on the procedural rights of defendants from the United States and nine European jurisdictions. Comparative Constitutional Law. Cases and Commentaries by Walter F. Murphy and Joseph Tanenhaus, examines the constitutional interpretation of a large number of substantive issues in six contemporary constitutional democracies. Reviewing the two books together provides an opportunity not only to compare them as teaching tools but also to assess the nature and purpose of co...