C. Panti - A.Paravicini Bagliani - N. Temple, Introduzione. G. Federici Vescovini, La pyramide visuelle d’Alhazen et la perspectiva pingendi de Léon Battista Alberti - N. El-Bizri, Alhazen’s Theory of Vision - D. Lohrmann, Brennspiegel: Von Alhazen zu Leonardo da Vinci - J. Hackett, Roger Bacon’s Various Texts on perspectiva in His Later Works: The Significance of Two New Versions of His Perspectiva - V. Sorge, Biagio Pelacani da Parma e la perspectiva - C. Panti, The Commentario terzo by Lorenzo Ghiberti and His volgarizzamenti of Vitruvius, Alhazen and the Medieval Perspectivists - D. Jacquart, Perspectiva et exégèse biblique franciscaine aux XIII e et XIVe siècles: un recours problématique? - F. Galli, The perspectiva ad usum praedicatorum in Late 13th- Century Florence. Some Observations Based on an Examination of Codex Plut. 17 sin. 8 from the Laurentian Library - D. G. Denery II, Vision and Visual Error in Later Middle Ages - A. Faliva, Situating perspectiva in Renaissance Florence. Casamenti, piani e montagne e paesi d’ogni ragione - N. Temple, Lorenzo Ghiberti and Contested Views of perspectiva in Renaissance Concepts of Space - F. Camerota, Perspectiva practica. Un ponte tra la perspectiva dei pittori. - J. V. Field, Perspectiva in Painting: Piero della Francesca and the Interaction Between Theory and Practice. Indexes by C. Panti and A. Paravicini Bagliani.