He is Chairman of the Society for Libyan Studies .
Is on the editorial and advisory boards of several periodicals : Ancient West and East ; Facta : A journal of Roman Material Culture Studies ; and Oxford Journal of Archaeology .
He is Chairman of the Society for Libyan Studies , and is on the editorial and advisory boards of several periodicals : Ancient West and East ; Facta : A journal of Roman Material Culture Studies ; and Oxford Journal of Archaeology .