« This work by Lorenzetti is more than a guide book in the traditional Baedeker sens;  it is, instead, a kind guided history of the city, a suggestion for itineraries- and for those who can read it, even under the inevitably plain style of the prose, there are itinera erudita of civilisation and the art which are alive expressive in it. » Presentation for the 1975 reprint by Nero Vianello.