Giovanni Gaye. " Carteggio inedito d' artisti dei secoli xiv, XV, xvi," Florence, 1840.
Daelli. " Carte Michelangiolesche inedite," Milan, 1865.
"Sammlung ausgewaehlter Briefe an M. A. B., herausgegeben von Carl Frey," Berlin, 1899.
B. Modern Works
Quatremère de Quincy. "Histoire de la vie et des Ouvrages de M. A. B.," Paris, 1835.
Hermann Grimm. " Das Leben Michelangelos," first edition, 1860, Hanover; seventh and last, 1900 (with illustrations) .
Aurelio Gotti. " Vita di M. A. B.," Florence, 1875.
"L'Œuvre et la Vie de Michel-Ange, dessinateur, sculpteur, peintre, architecte, et poete," par MM. Charles Blanc, E. Guillaume, Paul Mantz, Charles Garnier, Mezieres, A. de Montaiglon, G. Duplessis, et Louis Gonse, Paris, Gazette des Beaux-Arts, 1876.
C. Heath Wilson. "Life and Works of M. B.," London, 1876.
Anton Springer. "Raffael und Michelangelo," 1878, Leipzig.
Ludwig von Scheffler. "Michelangelo, eine Renaissance-Studie," 1892, Altenburg.
John Addington Symonds. "The Sonnets of M. A. B. and T. Campanella," London, 1878.
John Addington Symonds. "The Life of M. A. B.," London, 1893.
Carl Justi. " Michelangelo," 1900, Leipzig.
Corrado Ricci. "Michelangelo," 1901, Florence.
