He read Law at the University of Athens and History of Law at Sorbonne Paris. Since 1981 he has co-edited along with Thanassis Niarchos the prestigious literary periodical . Fostieris belongs to the so-called Genia tou 70 which is a literary term referring to Greek authors who began publishing their work during the 1970s especially towards the end of the Greek military junta of 1967-1974 and at the first years of the Metapolitefsi.