The work is thematically divided into 6 series: series I - Historical writings (4 volumes); Series II - Economics and Statistics (5 volumes); series III - Sociology and contemporary sociological problems (3 volumes); series IV - Social initiatives (3 volumes); V series - Various writings (2 volumes) VI series - Epistolary (3 volumes). Each series contains several titles, sometimes divided into several volumes, and each volume contains a bibliographic note that describes the content from an editorial point of view.

20 volumes published between 1947 and 1953 in the Vatican City by the Opera Omnia Committee of G. Toniolo.

Some volumes treated from the book "The Economist of God. Giuseppe Toniolo" by Mons. Domenico Sorrentino

• Capitalism and socialism, preface by S. Majerotto, Vatican City 1947.
• Christian Democracy. Concepts and addresses, I-II, preface by A. De Gasperi, Vatican City 1949.
• Christian Democracy. Institutes and forms, I-II, preface by A. Ardigò, Vatican City 1951.
• Cultural and Catholic Action Initiatives, preface by G. Dalla Torre, Vatican City 1949.
• Letters vol. I (1871-1895); vol. II (1896-1903); vol. III (1904-1918), collected by G. Anichini, ordered and annotated by N. Vian, Vatican City 1952-53.
• Today's sociological problem. Historical-critical study, preface by A. Fanfani, Vatican City 1947.
• Of the remote factors of the economic power of Florence in the Middle Ages and historical writings, preface by S. Majerotto, Vatican City 1952.
• History of the social economy in Tuscany in the Middle Ages: vol. I: The civil-political life; vol. II: Economic life, preface by M. Romani, Vatican City 1948.
• Spiritual, religious, family and various writings, I-II, preface by F. Costa, Vatican City 1952.
• Treatise on social economy and economic writings, I-IV, preface by F. Vito, Vatican City 1949-1952.