75 ILCS 40/2

The board of trustees shall appoint a library commission of not less than 3 or more than 7 members who shall hold office for terms of 3 years. Terms shall be established so that no more than 3 members' terms expire in any single year. Members of the commission shall receive no compensation but shall be reimbursed for actual and necessary expenses incurred in the performance of their duties. The commission shall advise and make recommendations to the board of trustees regarding the operations of the library and shall have such other powers and duties as the board may establish by ordinance.