The decoration of the manuscripts required hard work and served as a good school for Fra Angelico. Lessons in book miniatures taught him to write very subtly and economically, carefully consuming precious blue pigment and gold paint. The book, created by Fra Angelico in the workshop of the monastery of San Domenico in Fiesole, allows you to appreciate the skill of the artist.
Much will tell about this skill, for example, the capital letter “S”, ca. 1430 with inscribed in her figures of the Virgin and monks, prayerfully falling to the lower edges of her robe, or “Glorification of St. Dominic,” 1430. Look how skillfully the artist “inscribes” the curls of the letter “I” of the image of the saints. He even includes a dog in the composition, so that you can put your signature.