For the most part the text agrees with familiar sources from the early medieval period - Orosius, the Ravennese Geographer, and Isidore; but the names of , and others (all of which do not appear in Guido’s chief sources) show that this is no mere illustration of these authors, but also included contemporary information/modifications.
The form of the Mediterranean is very peculiar, and the size of the rivers and inland waters of the continents are exaggerated more than in almost any other medieval map.
Finally she is devastated when she hears that her friend and workmate, Margherita, has committed suicide by jumping out a window.
At Margherita's funeral, Sonia is distraught when the officiating priest names the deceased as Sonia instead of Margherita.
Sonia blacks out, and is at the point of death when Guido digs her up and rescues her.
Actually, Sonia is recovering from unconsciousness in a hospital. Guido is made aware when Dante tells him that Sonia has a criminal past, when 12 years earlier she helped her boyfriend rob her father's home, but Guido asks they be left in peace.
Guido’s map is less detailed than those of Lambert and Honorius, with only 54 legends on the world map.