The thirteenth issue of CIVICUS is about the constitution and the peculiarities of constitutional arrangement, its philosophical preconditions and practical application. Here you will be introduced to the articles on Social Contract Theories and its importance, territorial arrangement and characteristics of the electoral system. Deficiency and advantages of the different governance models and the situation in this terms in Georgia will be discussed in this issue. The authors seek to answer the following questions: What is the main concept of constitutionalism? What are the stages of Georgia’s constitutional development? What kind of dilemma does the electoral system create? What is the "winner’s bonus"? What type of legislature is better - unicameral or bicameral? How does the mixed model of state governance work?