What should one know about the organisational structure of Parliament?

Parliament currently comprises 386 Members of Parliament, who are elected by Hungarian citizens in parliamentary elections held every four years. Due to legislative changes, this number will decrease to 199 members at the next election. The work of Parliament is coordinated by important officials and institutions; the work of Parliament is determined by the House Committee, which is lead by the Speaker of Parliament and whose members are the Deputy Speakers and the parliamentary group leaders.