Altars
Rice, Louise. The Altars and Altarpieces of New St. Peter's: Outfitting the Basilica 1621-1666. Cambridge: Cambridge University Press, 1997.

Architecture
Ackerman, James S. The Architecture of Michelangelo. University Of Chicago Press, 1986, 364 p., ISBN: 0226002403

Anselmi, Alessandra. 1991. "Gli architetti della fabbrica di S.Pietro." In In Urbe Architectus: Modelli, disegni, misure; La professione dell'architetto, Roma, 1680-1750. Exhibition catalogue. Edited by Bruno Contardi and Giovanna Curcio, 272-80. Rome

Aslew, Pamela. 1950. "The Relation of Bernini's Architecture to the Architecture of the High Renaissance and of Michelangelo." Marsyas 5:39-61

Cantatore, Flavia. "Tre nuovi documenti sui lavori per San Pietro al tempo di Paolo II." In Gianfranco Spagnesi, ed., L'architettura della basilica di San Pietro. Storia e costruzione. Atti del convegno internazionale di studi, Roma, Castel S. Angelo, 7-10 novembre 1995, 119-22, Roma, 1997

Coolidge, John. 1942. "Vignola, and the Little Domes of St. Peter's." Marsyas 2: 63-123

Frommel, Christoph Liutpold, and Nicholas Adams, eds. The Architectural Drawings of Antonio da Sangallo the Younger and His Circle, vol. 2. Cambridge, Mass. and London, 2000

Millon, Henry A., and Lampugagni, Vittorio M., eds. The Renaissance from Brunelleschi to Michelangelo: The Representation of Architecture. 1994, New York

Rubinstein, Ruth. "Pius II's Piazza S.Pietro and St. Andrew's Head," in Essays in the History of Architecture Presented to Rudolf Wittkower, (London: Phaidon Press, 1967): 22-33.

Art
Difederico, Frank. The Mosaics of Saint Peter's: Decorating the New Basilica. Pennsylvania State University, 1983

Hersey, George L. High Renaissance Art in St. Peter's and the Vatican : An Interpretive Guide. University Of Chicago Press (July 1, 1993), 320 p., ISBN: 0226327825

Morey, C. R. Early Christian Art. Princeton, 1953

Pierce, James Smith. "Visual and Auditory Space in Baroque Rome." The Journal of Aesthetics and Art Criticism 18, no. 1 (1959): 55-67.

Rice, D. Talbot. The Beginnings of Christian Art, London, 197

Swift, E. H. Roman Sources of Christian Art, New York, 1951

Bernini
Avery, Charles. Bernini : Genius of the Baroque. Bulfinch; 1st North American ed (November 1, 1997), 288 p., ISBN: 0821224654

Bacchi, Andrea. Bernini: La scultura in San Pietro. F. Motta; 1. ed. italiana (January 1, 1998), 178 p., ISBN: 8871791584

Baldinucci, Filippo. The Life of Bernini. University Park and London: The Pennsylvania State University Press, 1966.

Bauer, George C. "Bernini and the Baldacchino: On Becoming an Architect in the Seventeenth Century". Architectura, 1996, 144-65

Harris, Ann Sutherland, ed. Selected Drawings of Gian Lorenzo Bernini. New York: Dover Publications, Inc., 1977.

Hibbard, Howard. Bernini. Penguin, Reissue edition (January 18, 1991), 256 p., ISBN: 0140135987

Kitao, Timothy K. Circle and oval in the Square of Saint Peter's: Bernini's art of planning. New York University Press for the College Art Association of America (January 1, 1974), 156 p., ISBN: 0814745571

Kirwin, W. Chandler. Powers Matchless: The Pontificate of Urban VIII, the Baldachin, and Gian Lorenzo Bernini. New York: Peter Lang, 1997.

Lavin, Irvin. Bernini and the Crossing of St. Peter's. New York: New York University Press, 1968.

----- Gianlorenzo Bernini: New Aspects of His Art and Thought. Pennsylvania State University Press, (November 1, 1985), 222 p., ISBN: 0271003871

---- Bernini and the Unity of Visual Arts, New York, Pierpont Morgan Library of Art, 1980

Magnuson, Torgil. Rome in the Age of Bernini: From the Election of Innocent X to the Death of Innocent XI, Humanities Pr (March 1, 1987), ISBN: 0391034480

Marder, Tod A. Bernini and the Art of Architecture. Abbeville Press (October 1, 1998), 343 p., ISBN: 0789201151

----Bernini's Scala Regia at the Vatican Palace. Architecture, Sculpture and Ritual. Cambridge, New York and Melbourne, 1997

McPhee, Sarah. Bernini and the Bell Towers: Architecture and Politics at the Vatican. Yale University Press (November 1, 2002), 352 p., ISBN: 0300089821

Morrissey, Jake. The Genius in the Design : Bernini, Borromini, and the Rivalry That Transformed Rome. William Morrow (March 1, 2005), 336 p., ISBN: 0060525339

Norton, Richard. Bernini and Other Studies in the History of Art. New York: The Macmillan Company, 1914.

Petersson, Robert T. Bernini and the Excesses of Art. M&M (March 1, 2003), 144 pages, ISBN: 8887700834

Scribner, Charles. Masters of Art: Bernini. Harry N Abrams (May 15, 1991), 128 pages, ISBN: 0810931117

Whittkower, Rudolph; Bernini. Phaidon Press; 4th edition (September 26, 1997), 320 p., ISBN: 0714837156

Catholicism
Brown, Raymond E. Introduction to the New Testament. Anchor Bible; 1st ed (October 1, 1997)

Catechism of the Catholic Church. Chicago, 1994.

Congar, Yves., Avery Cardinal Dulles. The Meaning of Tradition. Ignatius Press (November 30, 2004)

New Catholic Encyclopedia. 15 vols. and 2 suppls. New York, 1967-79

Church History
Bokenkotter, Thomas. A Concise History of the Catholic Church. Image. (August 16, 2005)

Brown, Peter. The Rise of Western Christendom: Triumph and Diversity 200-1000 Ad. Blackwell Publishers; 2nd ed. (February 1, 2003)

Daniel-Rops, Henri, Cathedral and Crusade, vol.1, tr. John Warrington, Garden City, NY: Doubleday Image, 1956

Duchesne, L. Early history of the Christian Church from its foundation to the end of the fifth century. John Murray (January 1, 1948)

Eusebius. The History of the Church : From Christ to Constantine. Penguin Classics; Rev Ed (April 3, 1990)

Hughes, Philip. Popular History of the Catholic Church. Macmillan. (September 1, 1962)

Jedin, Hubert. History of Church Abridged Vol. 3. Herder & Herder. (November 25, 1992)

O'Malley, John W. Four Cultures of the West. Belknap Press (April 30, 2006)

Schreck, Alan, The Compact History of the Catholic Church, Ann Arbor, MI: Servant Books, 1987

Constantinian Basilica
Bannister, Turpin C. "Constantinian Basilica of Saint Peter at Rome," The Journal of the Society of Architectural Historians 27, no. 1 (1968): 3-32.

Finch, Margaret. 1991. "The Cantharus and Pigna at Old St. Peter's. Gesta 30, no. 1: 16-26

Grimaldi, Giacomo. Descrizione della basilica antica di S. Pietro in Vaticano, Codice Barberini Latino 2733. Ed. Reto Niggl. Rome, 1972

Krautheimer, Richard. St. Peter's and medieval Rome. Unione internazionale degli istituti di archeologia, storia e storia dell'arte in Roma (January 1, 1985)

McClendon, Charles B. The History of the Site of St. Peter's Basilica, Rome. Perspecta, Vol. 25, 1989, pp. 32-65

Tronzo, William. The Prestige of Old St. Peter's. Studies in the History of Art. 16: 93-112.

Ward Perkins, J. B. . "The Shrine of St. Peter's and Its Twelve Spiral Columns," The Journal of Roman Studies 41, Parts 1 and 2 (1952): 21-33.

---- Constantine and the Origins of the Christian Basilica. Studies in Roman and Early Christian Architecture, 447-68, London

Dome
Mainstone, Rowland J. "The Dome of St Peter's: Structural Aspects of Its Design and Construction and Inquiries into Its Stability." AA files 39 (1999): 21-39

Wittkower, Rudolf. "Michelangelo's Dome of St Peter." In Idea and Image: Studies in the Italian Peninsula, 73-89. London, 1978

Grottoes
Noe, Virgilio Card. Le Tombe e i Monumenti Funebri Dei Papi nella Basilica di San Pietro in Vaticano. Franco Cosimo Panini, Modena, 2000

Nordhagen, Per Jonas. "A Carved Marble Pilaster in the Vatican Grottoes. Some Remarks on the Sculptural Techniques of the Early Middle Ages." Acta ad Archaeologiam et Artium Historiam pertinentia 4 (1969): 113-9

Torrigio, Francesco Maria. Le Sacre Grotte Vaticane. Viterbo, 1618.

Michelangelo
Ackerman, James S. The Architecture of Michelangelo. University Of Chicago Press, 1986, 364 p., ISBN: 0226002403

Contardi, Bruno. Michelangelo : Architect. Phaidon Press, (July 1, 2004), 388 p., ISBN: 1904313256

Hibbard, Howard. Michelangelo. HarperCollins Publishers; 2nd ed., (August 1, 1985), ISBN: 0064301486

Hirst, Michael. "A Note on Michelangelo and the Attic of St Peter's." Burlington Magazine 116 (1974): 662-5

Millon, Henry A., Michelangelo architect: The facade of San Lorenzo and the drum and dome of St. Peter's. Olivetti (January 1, 1988)

Stone, Irving. The Story of Michelangelo's Pieta. Doubleday & Company, Inc., Garden City, NY, 1964

----The Agony and the Ecstasy : A Biographical Novel of Michelangelo. Signet; Reissue ed. (March 3, 1987)

Vasari, Giorgio, et al. Life of Michelangelo. Alba House Society of St. Paul (December 1, 2003), 150 p., ISBN: 0818909358

Wallace, William E., “Michelangelo’s Rome Pietà, altarpiece or grave memorial?” in Verrocchio and late Quattrocento Italian sculpture, Steven Bule, Alan Phipps Darr, Fiorella Gioffredi Superbi, eds., Firenze, Le Lettere, 1992, pp. 243-255.

Wittkower, R., “A Note on Michelangelo’s Pietà in St. Peter’s,” Journal of the Warburg Institute, 1938.

Necropolis
Basso, Michele. Guide to the Vatican Necropolis. Fabbrica of St Peter's in the Vatican, Vatican, 1986

Ferrua, A., E Josi, and E. Kirschbaum. Esplorazioni sotto la Confessione di San Pietro in Vaticano. Vatican City, 1951.

Guarducci, Margherita. The Tomb of St Peter. Hawthorn Books, 1960

----Pietro in Vaticano, Rome: Istituto Poligrafico e Zecca dello Stato, 1983

Kirschbaum, Engelbert. The Tombs of St Peter & St Paul. Secker & Warburg, London, United Kingdom, 1959

Krautheimer, Richard. et al. Corpus Basilicarum Christianarum Romae. Vatican City and New York, 1977

Toynbee, J. M. C. The shrine of St. Peter and the Vatican excavations. Pantheon Books (January 1, 1957),

Walsh, John E. The Bones of St. Peter: The First Full Account of the Search for the Apostle's Body. Doubleday Books, (October 1, 1982) ISBN: 0385150385

Obelisk
Dibner, Bern. Moving the Obelisks. a Chapter in Engineering History in Which the Vatican Obelisk in Rome in 1586 Was Moved By Muscle Power, and a Study of More Recent Similar Moves. Burndy Library, New York, 1950

Iversen, Erik. Obelisks in Exile, I, The Obelisks of Rome. Copenhagen, 1968.

Fontana, Domenico. Della Trasportatione dell'Obelisco Vaticano (On the Transportation of the Vatican Obelisk). (facsimile of 1590 edition on CD-ROM). Rome: Domenico Basa (Oakland: Octavo) 1590; 2002

Popes
Allen, John L., Jr. The Rise of Benedict XVI. Doubleday. June 2005

Bargrave, J. Pope Alexander the Seventh and the College of Cardinals. New York: AMS Press, 1968

Butler, Scott, Norman Dahlgren, & David Hess. Jesus, Peter & the Keys. Santa Barbara, CA: Queenship Publishing Co., 1996, 431p.

Cahill, Thomas. Pope John XXIII. Viking Books (January 1, 2002), 241 p.,

Chiron, Yves. Pope Saint Pius X. Angelus Press (March 1, 2002)

Collins, Jeffrey. Papacy and Politics in Eighteenth-Century Rome, Pius VI and the Arts. Cambridge University Press

Davies, R. The Book of the Pontiffs (Liber Pontificalis). English trans. 3 vols. Liverpool, 1989-95.

Duffy, Eamon. Saints and Sinners: A History of the Popes. Yale University Press; 2nd edition (April 1, 2002)

Hebblethwaite, P. John XXIII. London, 1984.

Kelly, J. N. D. The Oxford Dictionary of Popes. Oxford University Press, USA; Updated ed. (March 31, 2006)

Maras, Raymond J. Innocent XI, Pope of Christian Unity. Cross Cultural Publications, Notre Dame, IN, 1984

Moorhead, John. Gregory the Great (The Early Church Fathers). Routledge; 1st ed. (May 19, 2005)

Olszewski, Edward J. Cardinal Pietro Ottoboni (1667-1740) And The Vatican Tomb Of Pope Alexander VIII. American Philosophical Society, Philadelphia, 2004

Pollard, John F. The Unknown Pope: Benedict XV (1914-1922) and the Pursuit of Peace. Geoffrey Chapman Publishers (January 1, 2001)

Tillard, J. M. The Bishop of Rome. Health Policy Advisory Center (December 1, 1983)

Weige, George. Witness to Hope : The Biography of Pope John Paul II, Harper Perennial; Updated ed. (April 1, 2005)

Queen Christina of Sweden
Buckley, Veronica. Christina, Queen of Sweden : The Restless Life of a European Eccentric. Fourth Estate, 2004

Masson, Georgina. Queen Christina. New York: Farrar, Straus & Giroux, 1968

Relics
Adelson, Howard L. "The Holy Lance and the Hereditary German Monarchy." The Art Bulletin 48, no. 2 (1966): 177-192.

Boehm, Barbara. "Body-Part Reliquaries: The State of Research," Gesta 36, no. 1 (1997): 8-19.

Bonser, Wilfrid. "The Cult of Relics in the Middle Ages," Folklore 3, no. 4 (Winter 1962): 234-256.

Bynum, Cynthia Walker and Paula Gerson. "Body-Part Reliquaries and Body Parts in the Middle Ages," Gesta 36, no. 1 (1997): 3-7.

Drijvers, Jan Willem. Helena Augusta: The Mother of Constantine the Great and the Legend of Finding the True Cross. Leiden: E. J. Brill, 1999.

Gaspari, Antonio. "Has Veronica's Veil Been Found?" Urbi et Orbi Communications, November 1999, http://www.catholic-forum.com/saints/stv02001.htm.

Grimaldi, Giacomo. Instrumenta autentica translationum sanctorum corporum & sacrarum reliquarium… 2 vols. Rome. Bibl. Vat. MS Barb. Lat 2733.

Hahn, Cynthia. "Voices of the Saints: Speaking Reliquaries," Gesta 36, no. 1 (1997): 20-31.

Loomis, Laura Hibbard. "The Holy Relics of Charlemagne and King Athelstan: The Lances of Longinus and St. Mauricius," Speculum 25, no. 4 (1950): 437-456.

New York Times, "Pope Takes Relic of Saint to Council," September 24, 1964.

-----. "Pope Returns a Relic of Apostle to Greeks After Five Centuries," September 27, 1964.

Proja, Don Giovan Battista. "La Reliquia del Capo di S. Andrea a Roma." Alma Roma 39 no. 2 (1998): 109-129.

Sora, Steven. Treasures from Heaven: Relics from Noah's Ark to the Shroud of Turin. Hoboken, New Jersey: John Wiley & Sons, Inc., 2005.

Thiede, Carsten Peter and Matthew d'Ancona. The Quest for the True Cross. New York: Palgrave, 2000.

Wilson, Ian. Holy Faces, Secret Places: an amazing quest for the face of Jesus. New York: Doubleday, 1991.

Rome
Chastel, André. The Sack of Rome 1527. Princeton, 1983

D'Amico, John F. Renaissance Humanism in Papal Rome : Humanists and Churchmen on the Eve of the Reformation. The Johns Hopkins University Press (June 1, 1983)

Krautheimer, Richard. The Rome of Alexander VII, 1655-1667. 1985, Princeton Univ Pr; Reprint edition (August 1, 1987)

----Rome: Profile of a City, 312-1308. Princeton and Builford: Princeton University Press, 1980

Stinger, Charles L. The Renaissance in Rome. Indiana University Press (October 1, 1998)

Westfall, C. W. In the Most Perfect Paradise. Alberti, Nicholas V and the Invention of Conscious Urban Planning in Rome, 1447-1455, University Park and London: Pennsylvania University Press, 1974

Saints
Butler, Alban. Butler's Lives of the Saints. Easton Press (January 1, 1996)

Chadwick, H. "Saint Peter and Paul in Rome," Journal of Theological Studies, n.s. 8 (1957), 31-52

Thiede, Carsten P. Simon Peter: From Galilee to Rome. Zondervan (November 1, 1988)

Delaney, John J. Dictionary of Saints. Doubleday; 1st ed (September 3, 1980)

Noè, Virgilio. Santi Fondatori nella Basilica Vaticana. Panini Franco Cosimo, Modena, 1996

St Peter's Basilica
Bellini, Frederico. "La moderna Confessione di San Pietro: Le proposte di Ferrabosco e Maderno." In La Confessione nella basilica di San Pietro in Vaticano, ed. A. M. Pergolizzi, 43-55. Milan, 1999

Carpiceci, A. 1983, La fabbrica di San Pietro. Florence

Del, Re N. 1969. "La Sacra Congregazione della Reverenda Fabbrica di S. Pietro." Studi Romani 17:288-301

----Guide del Vaticano. San Pietro. La sagrestia. Il tesoro. Le sacre grotte. La cupola. La necropoli. Rome: Palombi, 1991

Francia, Ennio. Storia della costruzione del nuovo San Pietro: Da Michelangelo a Bernini. De Luca (January 1, 1989), 259 p., ISBN: 8878132160

----La costruzione del nuovo San Pietro, Rome: De Luca, 1977

Filippi, G. Delfini. Guide del Vaticano. San Pietro. La basilica e la piazza. Rome: Palombi, 1989

Lees-Milne, James. Saint Peter's. Little Brown and Co., 1967

Letarouilly, Paul Marie. The Vatican and the Basilica of St. Peter, Rome. A. Tiranti (January 1, 1963)

Pancera, Mario. San Pietro. Rusconi (January 1, 1983), 220 p.

Pietrangeli, C. ed. La basilica di San Pietro, Firenze: Nardini, 1989

Pinelli, Antonio ed. La Basilica di San Pietro in Vaticano. Modena: F.C. Panini, 2000.

Ruysschaert, J. Prudence l'espagnol poete des deux basiliques romaines de S. Pierre et de S. Paul, in Rivista di archeologia cristiana, t. 42 (1966; ed. 1968), pp. 267-286

Sperandio, A., Zander, G., Zappa, G. Works on the facade of St. Peter's Basilica: Executed during the years 1985-1986 by the Reverenda Fabbrica di San Pietro through the generosity of the order of the Knights of Columbus. Vatican Polyglot Press (January 1, 1989), 124 p.

Suffi, Nicolo. St. Peter's - Guide to the Square and the Basilica. Libreria Editrice Vaticana, 1998

The Vatican and Christian Rome. Libreria Editrice Vaticana, 1975

Thoenes, Christof. La fabbrica di San Pietro. Il Polifilo, Milano, 2000

Tronzo, William, ed. St. Peter's in the Vatican. Cambridge University Press (August 29, 2005), 504 p., ISBN: 0521640962

St. Peter's Square
Birindelli, Massimo. Piazza San Pietro. Rome and Bari: Laterza, 1981

Del Pesco, Daniela. Colonnato di San Pietro. Dei Portici antichi e la loro diversita, con un'ipotesi de cronologia. Rome, 1988

Kitao, T. K. Circle and Oval in the Square of Saint Peter's. Bernini's Art of Planning. New York, New York University Press, 1974

Martinelli, V. ed. Le statue berniniane del colonnato di San Pietro. Rome: De Luca, 1987

Zuydwijk, Ted. St. Peter's Square, Vatican City. Veenman & Zonen, 1975