Based on the author's Storia di un libro, publ. 1995. A rev. and expanded version with the present title appeared in the review L'Esopo (n. 71-72, 1997, p. 15-30). The edition by Robin edizioni, also in 1999, which is mentioned here as forthcoming, has 74 p., despite the implication that the version is the same. Cf. Nota, p. .