Cino's most important legal work was Lectura in codicem (1312–1314), a commentary on the Justinian Code which blended pure Roman law with contemporary statutes and customary and canon law, thereby initiating Italian common law. He wrote some 200 lyric poems notable for purity of language and harmony of rhythms, most of them dedicated to a woman named Selvaggia. Dante, a friend of his, in De vulgari eloquentia, praised his poetry. Cino was also close to his fellow student Giovanni d'Andrea and was a literary friend of Petrarch.
Weimar, Peter (2001). "Cino da Pistoia". In Michael Stolleis (ed.). Juristen: ein biographisches Lexikon; von der Antike bis zum 20. Jahrhundert (in German) (2nd edition ed.). München: Beck. p. 133. ISBN3-406-45957-9.