1) Ady, Cecilia Mary and Edward Armstrong, A History of Milan under the Sforza, Methuen and Co., London, 1907.

2) Ady, Julia Mary Cartwright, Beatrice d'Este, Duchess of Milan, 1475-1497, J.M. Dent, London, 1920.

3) Ady, Julia Mary Cartwright, Isabella d'Este, Marchioness of Mantua, 1474-1539, Vol. I, John Murray, London, 1903.

4) Ady, Julia Mary Cartwright, Isabella d'Este, Marchioness of Mantua, 1474-1539, Vol II, John Murray, London, 1903.

5) Bambach, Carmen C., Alison Manges and Rachel Stern, Leonardo Master Draftsman, Metropolitan Museum of Art, New York, 2003.

6) Belozerskaya, Maria, Luxury Arts of the Renaissance, Getty Publications, Los Angeles, 2005.

7) Bietenholz, P.G. and Thomas B. Deutscher, Contemporaries of Erasmus: A Biographical Register of the Renaissance and Reformation, University of Toronto Press, Toronto, 2003. 

8) Brown, David Alan, Sylvia Ferino and Jaynie Anderson, Bellini, Giorgione, Titian: and the Renaissance of Venetian Painting, Yale University Press, New Haven, 2006.

9) Brown, John William, The Life of Leonardo da Vinci, with a Critical Account of His Works, William Pickering, London, 1828.

10) Campbell, Stephen John, The Cabinet of Eros: Renaissance Mythological Painting and the Studiolo of Isabella d'Este, Yale University Press, New Haven, 2006.

11) Castigilione, Baldesare, The Book of the Courtier (1528), Barnes and Noble Publishing, New York, 2005.

12) Cremante, Simona, Leonardo da Vinci: Artist, Scientist, Inventor, Giunti, Florence, 2005.

13) Farago, Claire, Leonardo da Vinci, Selected Scholarship: Leonardo's Projects 1500-1519, Garland Publishing, New York, 1999.

14) Field, Judith Veronica, The Invention of Infinity: Mathematics and Art in the Renaissance, Oxford University Press, New York, 1997.

15) Field, J. V., Piero della Francesca: A Mathematician's Art, Yale University Press, New Haven, 2005.

16) Furlotti, Barbara and Guido Rebecchini, The Art of Mantua: Power and Patronage in the Renaissance, J. Paul Getty Museum, Los Angeles, 2008.

17) Gardner, Edmund Garratt, The King of Court Poets: A Study of the Work, Life and Times of Lodovico Ariosto, E.P. Dutton and Co., New York, 1906.

18) Garner, John Leslie, Caesar Borgia: A Study of the Renaissance, McBride Nast and Co., 1912.

19) Goffen, Rona, Giovanni Bellini, Yale University Press, New Haven, 1989.

20) Goldscheider, Ludwig, Leonardo da Vinci, Landscapes and Plants, Phaidon Press, London, 1952.

21) Hare, Christopher, The Most Illustrious Ladies of the RenaissanceCharles Schriber's Sons, 1907. 

22) Hare, J.R., The Travel Journal of Antonio De Beatis: Germany, Switzerland, the Low Countries, France and Italy 1517-1518, Hakluyt Society, London, 1979. 

23) Heaton, Mrs. Charles, Leonardo da Vinci and His Works, Mac Millan, New York, 1874.

24) Herz-Fischler, Roger, A Mathematical History of the Golden Ratio, Dover Publications, New York, 1987.

25) Hinds, Kathryn, Everyday Life in the Renaissance, Marshall Cavendish Benchmark, New York, 2010.

26) Huntley, H.E., The Divine Proportion: A Study in Mathematical Beauty, Dover Publications, New York, 1970.

27) Instituto Geographico De Agostini, Leonardo da Vinci, Artabas, Japan, 1938.

28) Kemp, Martin, Leonardo, Revised Edition, Oxford University Press, New York, 2011.

29) Lightbrown, R.W., Carlo Carivelli, Getty Grant Program, Italy, 2004.

30) McCurdy, Edward, The Mind of Leonardo da Vinci, Dodd, Mead and Co., New York, 1928.

31) McLanathan, Richard, Leonardo da Vinci, First Impressions, Harry N. Abrams, New York, 1990.

32) Mona Lisa Foundation, Mona Lisa, The Mona Lisa Foundation, Zurich, 2012.

33) Muntz, Eugene, Leonardo da Vinci, Artist, Thinker, Man of Science, William Heineman, London, 1898.

34) Pater, Walter Horatio, The Renaissance, The Modern Library, New York, 1873.

35) Pedretti, Carlo, A Chronology of Leonardo da Vinci's: Architectural Studies After 1500, E. Droz, Geneva, 1962.

36) Pirrotta, Nino and Elena Povoledo, Music and Theatre, from Poliziano to Monteverdi, Cambridge University, Cambridge, 1982.

37) Rebecchini, Guido, Private Collectors in Mantua 1500-1630, Sussidi-Eruditi, Vol. 56, Rome, 2002.

38) Reiss, Sheryl E. and David G. Vilkins, Beyond Isabella: Secular Women Patrons of Art in Renaissance Italy, Ed. 1, Truman State University, Missouri, 2001.

39) Richter, Jean Paul, The Literary Works of Leonardo da Vinci, Vol 1, Sampson Low, Marston, Searle and Rivington, London, 1883.

40) Richter, Irma, Leonardo da Vinci Notebooks, Oxford University Press, New York, 2008.

41) Rubin, Patricia Lee, Giorgio Vasari: Art and History, Yale University Press, New Haven, 1995.

42) Sanders, Donald C., Music at the Gonzaga Court in Mantua, Lexington Books, Maryland, 2012.

43) Suh, Anna, Leonardo's Notebooks, Black Dog and Leventhal Publishers, New York, 2005.

44) Taylor, Rachel Annand, Leonardo the Florentine: A Study in Personality, Richards Press, London, 1927.

45) Tinagli, Paola, Women in Italian Renaissance Art: Gender, Representation, and Identity, Manchester University Press, New York, 1997.

46) Valeri, Francesco Malaguzzi, La Corte di Ludovico il Moro, Vol I, Ulrico Hoephi, Milan, 1913.

47) Vallentin, Antonina, Leonardo da Vinci, The Tragic Pursuit of Perfection, Viking Press, New York, 1938.

48) Vasari, Giorgio, The Lives of Painters, Sculptors and Architects (1550), Vol. 3, Aldine House, London, 1900.

49) Verheyen, Egon, The Paintings in the Studiolo of Isabella d'Este at Mantua, ACLS History Book Project, New York, 2009.

50) Ventura, Leandro, Mantegna e la Corte di Mantova, Giunti, Florence, 2006.

51) Woods, Kim, Making Renaissance Art, Westdale Press, London, 2007.