The editors would like to thank the original members of the Brown University–University of Bologna Pico Project for their collaboration in the preparation of this edition. In particular, thanks go to Pier Cesare Bori and the Feltrinelli Publishing House of Milan for permitting the inclusion of a translated chapter from Pluralitàdelle vie (© Giangiacomo Feltrinelli Editore Milano; Prima edizione in “Campi del Sapere” aprile 2000) and to the Biblioteca Nazionale Centrale di Firenze, which permitted the reproduction of four images from the Palatino 885 manuscript. We would also like to thank Sarah Christopher for her contribution to the translation of Pier Cesare Bori’s introductory piece, as well as Helen Freear-Papio, Lesley Freeman Riva, and Leanne Kilroy Borghesi for their invaluable help in the preparation of the final manuscript. Further thanks go to Francesco Bausi, whose Latin critical text is adopted for the present edition, and to Cristiana Facchini. Both read and commented on the manuscript at various stages. Brown University and the Brown–Bologna Exchange Fund have provided financial and logistical support for the Pico Project since its inception, as they have for this edition. We would additionally like to acknowledge the National Endowment for the Humanities for its generous support of the Pico Project, now part of the Virtual Humanities Laboratory at Brown.