Volume 23 (2018) of the «Bollettino dell'Opera del Vocabolario Italiano» has been released. In addition to the usual selection of new TLIO entries, this volume includes five editions of texts (two Tuscan vulgarizations of Latin medical treatises, a version of the Fiore di Virtù, a large fourteenth-century register of revenues and expenditure), the analysis of three letters by Cola di Rienzo on the story of the merchant Giannino di Guccio Baglione appointed king of France, an article on the development stages of Pluto system for drafting TLIO entries, and the second series of observations about TLIO entries of uncertain etymology.