75 ILCS 5/4-6
Within 60 days after their election or appointment, the trustees shall take the oath of office and meet to organize the board. The required oath may be taken and subscribed before the Secretary or Secretary pro tempore of the library board, the County Clerk of the county containing all or a larger portion of the library, the Judge entering the order for the establishment referendum or before any other person authorized to administer oaths.
The first action taken at the organizational meeting of the board shall be the election of a President and a Secretary and such other officers as the board may deem necessary, and the board shall further provide in the bylaws of the board as to the length of the terms in office. The trustees shall determine the time and place of all official meetings of the board at which any legal action may be taken and shall post notice thereof at the public library maintained by the board and at not less than one public place within the corporate confines of the area of library service one day in advance thereof.
75 ILCS 5/4-6