The Liber sine nomine (The Book without a Name) is a collection of nineteen personal letters written in Latin by the fourteenth century Italianpoet and RenaissancehumanistPetrarch. The letters being harshly critical of the Avignon papacy, they were withheld from the larger collection of his Epistolae familiares (Letters to Friends) and assembled in a separate book. In this fashion, Petrarch reasoned, a reader could throw away this collection, and the other letters to friends could be preserved for posterity.[1]
Norman P. Zacour's trans. Liber Sine Nomine titled: Petrarch's Book Without A Name, Pontifical Institute of Mediaeval Studies, Toronto, Canada (1973); ISBN0-88844-260-2
Kirkham, Victoria, Petrarch: a critical guide to the complete works, University of Chicago Press, 2009, ISBN0-226-43741-8
M.E. Cosenza, Francesco Petrarca and the Revolution of Coli di Rienzo, (Chicago University Press 1913)
Paul Piur, Petrarca 'Buch ohne Namen' und die papstliche Kuri (Halle/Saale: Max Niemeyer, 1925).
John E. Wrigley A Papal Secret known to Petrarch, Speculum, XXXIX (1964), pp. 613 – 634.
E. H. Wilkins, Petrarch's Correspondence, (Padue: Editrice Antenore, 1960).
E. H. Wilkins, Petrarch at Vaucluse, (University of Chicago Press 1958).
J.H. Robinson, Petrarch, First Modern Scholar, (New York 1898).
V. Rossi, Epistolae Familiares, volume 4, (Florence 1926)
Francesco Petrarca: Cím nélküli könyv - Liber sine nomine, Hungarian translation by Péter Ertl, Lazi Könyvkiadó, 2018, Szeged.