This issue of «AIS/Design. Storia e Ricerche», edited by Raimonda Riccini, is in some ways anomalous. The proposed theme constitutes a sort of first experimentation for our journal. The novelty is that of having built an entire issue around a single character: Enzo Frateili (Rome 1914-Milan 1993). He is a little-known if not unknown to most people today, but who represented one of the most interesting and vital voices in the culture of design and architecture in Italy in the second half of the twentieth century...