PublicationsThere are currently 31 Scientific Commissions  and 4 Special Commisions working inside UISPP, following specific topics within the interdisciplinary approach of world prehistory and protohistory. They organize events and publish scientific papers. Active members are those who clearly expressed their interest in joining the UISPP. Membership can be obtained by payment of annual fee and is automatically cancelled in case of non-payment of the yearly contribution.