The text presents to the Italian public the two-volume collection of writings by Iu. Volchok – architect, historian and theorist from Moscow active since the 1970s in the most prestigious research and training institutions of the USSR first, and then of the Russian Federation. His writings are presented following the thematic areas touched on in the book – from the history of building structures and the history of art and architecture to the problems of preserving the legacy of the avant-garde and modernity in Russia. The introduction to his theoretical research is accompanied by a chronicle of the author’s personal experience of collaborating with Iu. Volchok from 1993 to 2020 in a series of exhibition projects and publications on the Soviet avant-garde and its legacy. The chronological narrative of the projects witnesses the vicissitudes and the development of scientific interest in the architectural culture of the Soviet avant-garde in Russia and Italy over the last thirty years.