S.O. Khan-Magomedov, a Russian and Dagestanian architect and designer, is a leader in the investigation of the soviet architectural avant-garde of the 20th century. This is the second volume of the history of this movement, its connection with leftist groups in the visual arts, and other groups and directions in soviet architecture of the first third of the 20th century. It contains all the main social theories of the architectural avant-garde, their philosophy and values. The most valuable illustrations covering practically all spheres of the masters’ activities in the 1920 projects, sketches, models, landscapes, and posters, make the monograph a unique encyclopedic edition. Bibliography and name index is inserted. List of illustrations, contents, and summary in English.