he was also an active author, his main works being: "μακεδονικές ιστορίες" (macedonian stories) and "αγώνες στη μακεδονία" (struggles in macedonia) which was left unfinished due to his death on 18 june 1975. modis was a member of the society for macedonian studies, and organised many committees of macedonian struggle fighters in order to raise statues to prominent protagonists of the struggle. he also served as president of the committee for the construction of statues of alexander the great, philip and aristotle. during the greek military junta of 1967–1974 he was forced by the regime to resign from the presidency of the committee.