Adalberto Libera (1903-1963) was one of the preeminent Italian Rationalist architects of the 1930s and 1940s. Both a protagonist of Italian modern architecture and an important cultural organizer during the movement's birth, he emerged as author of several key works built under the Fascist regime. Some of his best-known projects include the Palazzo dei Congressi, the post office in Rome, the design of the entrance facade of the Exhibition of the Tenth Anniversary of the Fascist Revolution, and the single-story housing units in Rome's Tuscolano Quarter. Other projects - schools, auditoria, exhibition pavilions, and master plans - display the range of his commissions. Adalberto Libera covers the complete works of this prolific architect: over 70 projects are documented through more than 300 sketches, drawings, models, photographs, and brief descriptive texts. An introductory essay, biography, and bibliography including Libera's theoretical writings complete the monograph, bringing this great architect long-overdue attention.