This encyclopedic guide gives a general idea of ​ ​ the parliamentary map of the world. It contains brief information about the national parliaments of 192 states. In brief essays, in relation to each country, information is provided about its territory, population, religion, history, constitutional structure, form of government, parliamentary structure, features of the legislative process, membership in inter-parliamentary organizations. In addition to the name of the state and its parliament, the capital of this state is indicated in official languages, as well as postal and email addresses, telephone and fax numbers, the address of the website of the parliament (its chambers). This is the first such complete publication of this kind in Russia, dedicated to the national parliaments of the world. A single system of presentation of the material of the articles of the reference book facilitates the search for data of interest to the reader. For parliamentarians, government officials, researchers, students, graduate students, teachers of law schools and faculties.