The board of library commissioners shall, for the purposes of section 20, article IV of the constitution of the state of Idaho, be maintained within the department of self-governing agencies and shall consist of five (5) commissioners appointed by the governor. The board shall nominate to the governor qualified candidates to fill any board vacancy. The governor shall consider geographic representation when selecting board commissioners by appointing one (1) board commissioner from the northern part of the state, one (1) board commissioner from the eastern part of the state, one (1) board commissioner from the southwestern part of the state and one (1) board commissioner from each of the two (2) congressional districts. Appointments are for five (5) year terms and commissioners may serve more than one (1) term. At the end of a term, the commissioner shall continue to serve until a successor is appointed and qualifies. A vacancy on the board of library commissioners shall be filled in the same manner as regular appointments and shall be for the unexpired portion of the term. The governor may remove board commissioners for cause including, but not limited to, frequent absences from board meetings. The board of library commissioners shall annually elect a chairman, vice chairman and other officers as it deems reasonably necessary. The board of library commissioners shall meet at least twice each year. Commissioners shall be compensated as provided by section 59-509(n), Idaho Code.