In the book, authors from eleven post-communist countries analyse the specific legal and political character of the organs of the control of law constitutionality in post-Soviet states. This is done through explaining the legal and political character of those bodies as well as their place in the system of the state power. The authors also examine tasks assigned to those bodies, the manner of their establishment, the course of their work, the legal force of their decisions and the legal status of their members. In the conclusions, the authors refer to the optimisation of the political status of the organs controlling the constitutionality of law as organs of the protection of the constitution. Research findings, conclusions and recommendations formulated in the book can be applied with a view to changing the mechanisms of the protection of constitutionality in post-Soviet states or presenting lawmakers in other countries with consequences of adopting particular legal solutions.