In East Central Europe, constitutionalism comprises an effort by postcommunist societies to consolidate around certain values, principles, and rules that would facilitate the formation of a new political architecture as well as a new political identity for their countries. Based primarily on the experience of Poland - in comparison with other East Central European countries - this book debates the specific features of postcommunist constitutionalism. The result is a theory of reflexive constitutionalism (informed by the sociological theory of reflexive modernization) which assesses critically the intellectual resources as well as the consolidating potential of the classic foundations of liberal democracy within the reality of postcommunist transformation.