Dominique Le Tourneau (2002). What Is Opus Dei?. Gracewing. ISBN0-85244-136-3.—a French scholar's synthesis
Amadeo Fuenmayor, Valentin Gomez-Iglesias and Jose Luis Illanes (1996). The Canonical Path of Opus Dei. Four Courts Press. ISBN1-85182-221-6.—two canonists and a theologian study the juridical nature and history of Opus Dei
O'Connor, William: Opus Dei: An Open Book. A Reply to the Secret World of Opus Dei by Michael Walsh, Mercier 1991
William West (1987). Opus Dei. Exploding a Myth. Scepter. ISBN0-949773-75-1.—a 5-year research in 10 countries conducted by a senior journalist and deputy editor of the Australian
John Coverdale: Uncommon Faith: The Early Years of Opus Dei (1928-1943), Scepter Publications, 2002. ISBN1-889334-74-X
Rafael Gomez Perez (1992). Opus Dei: Una Explicacion. Ediciones Rialp. ISBN84-321-2892-9.—professor of anthropology explains various aspects of Opus Dei
Cristianos Corrientes: Textos sobre el Opus Dei. Rialp, Madrid. 1971.
François Gondrand, At God's Pace, Scepter 1989.
José Orlandis, Mis recuerdos: primeros tiempos del Opus Dei en Roma Rialp, 1995 ISBN84-321-3090-7
Pedro Rodriguez, Fernando Ocariz and José Luis Illanes (1994). Opus Dei in the Church. Four Courts Press. ISBN1-85182-170-8.—an ecclesiological and theological study of Opus Dei
Giuseppe Romano (1995). Opus Dei: Who? How? Why?. Alba House. ISBN0-8189-0739-8.—a study of an Italian essayist
Luis Ignacio Seco (1987). The Legacy of Msgr. Josemaria Escriva. Sinagtala Publishers, Manila.
Antonio Viana, “Law and spirit: on the 20th anniversary of the establishment of Opus Dei as a Personal Prelature,” Number 36, January–June 2003, Romana.
Pedro Casciaro (1998). Dream and Your Dreams will Fall Short. Princeton. ISBN0-906138-44-2.
Jean-Jacques Thierry (1975). Opus Dei: A Close Up. Scepter. ISBN0-933932-32-4.—the first serious study on Opus Dei to be published, written by a French journalist
Fergal Bowers (1989). The Work - An Investigation into Opus Dei in Ireland. Dufour Editions. ISBN1-85371-037-7.
Peter Bristow (2001). Opus Dei: Christians in the Midst of the World. Catholic Truth Society, London.
Gordon Urquhart (1999). The Pope's Armada: : Unlocking the Secrets of Mysterious and Powerful New Sects in the Church. Prometheus Book. ISBN157392699X.
Thierry, Jean-Jacques (1975). Opus Dei: A Close Up. Scepter. ISBN0-933932-32-4. — the first serious study on Opus Dei to be published, written by a French journalist
De Blaye, Edouard. 1976 (1974). Franco and the Politics of Spain. Middlessex: Penguin. [original title Franco ou la monarchie sans roi, Editions Stock]
Descola, Jean. O Espagne, Albin Michel, Paris, 1976.
Graham, Robert. 1984. Spain. Change of a Nation. London: Michael Joseph.
Gunther, Richard. 1980. Public Policy in a No-Party State. Spanish Planning and Budgeting in the Twilight of the Franquist Era. Berkeley, CA: University of California.
Gunther. Richard. 1980. Public Policy in a No-Party State. Spanish Planning and Budgeting in the Twilight of the Franquist Era. Berkeley: University of California.
Hills, George. 1970. Spain. London: Ernest Benn Ltd.
Paredes, Javier (coord.), Historia contemporánea de España (siglo XX), Ariel Historia, Barcelona 1998.
Payne, Stanley G. 1999. Fascism in Spain. 1923-1977. Madison, WI: Wisconsin University.
Preston, Paul. 1990. The Politics of Revenge. Fascism and the Military in Twentieth-Century Spain. London. Unwin Hyman.
Preston, Paul. 1993. Franco. A Biography. London: HarperCollins.
Salgado Araujo, Francisco Franco, Mis conversaciones privadas con Franco, Col. Espejo de España, Ed. Planeta, 1976.
Tusell, Javier. Manual Historia de España: Siglo XX, Historia 16, Madrid, 1990.
Various Authors, (Manuel Ferrer, José de Armas, José Lino Feo, Manuel Fernández Areal, Charles Powell, Alfonso Ascanio), Franquismo y transición democrática: Lecciones recientes de Historia reciente de España, Centro de Estudios de Humanidades, Las Palmas de Gran Canaria, 1993.