At the Academy, Igino met the painters of the Macchiaioli movement, and developed close friendships with Fattori and Signorini, who appreciate his first paintings, displayed at Florentine exhibitions between 1885 and 1889.
At the 1889 Promotrice of Florence he exhibited In Church, In Spring, Prima comunione, Dopo colazione, La convalescente, and Three Rabbis at the Temple.
[3] Over the years, Igino gravitated towards learning about art history and in 1886 attended lectures by Pasquale Villari and Alessandro d'Ancona at the Istituto di Studi Superiori of Florence.
He published his first articles about the Tuscan artists – Giovanni Pisano, Tino di Camaino, and Giambologna, among others – in the journal "Archivio Storico dell’Arte" founded by Adolfo Venturi.
He taught at the Istituto di Studi Superiori e pubblica, and published a number of monographs with photographs, including, among others, on Beato Angelico, Filippo Lippi, Botticelli, and Benvenuto Cellini.