Answer :
The presiding official or the head of the House of Representatives is called the Speaker of the House. They are the highest ranking member of the majority party in the House of Representatives.
The president of the House of Representatives is called the Speaker.
The Speaker of the House election takes place shortly after the national elections, each party nominates a candidate for the post, and then they compete in a general congressional vote. Usually it is enough that the party has a simple majority to elect the speaker, since there are only two parties.
The Speaker of The House will chair the sessions, define the order of matters to be voted, among others.