The avant-​guard ideas and views of the Orga­ni­za­tion for School Build­ings peo­ple and the architect-​artist Xenophon Deste­fanos, with the super­vi­sion and con­struc­tion by TETRAGON of its exhibit spaces in Thes­sa­loniki Inter­na­tional Fair, resulted in orig­i­nal and awarded pre­sen­ta­tions that were favoured by the public.