A monograph entitled Cyrano tel qu'en lui-mÍme. Since 1990, Cyranian studies have been immensely fruitful: the discovery of censured copies of his Oeuvres diverses (1654), the reappearance of the third known manuscript of L'Autre Monde ou les Empires et Estats de la Lune and, finally, the evidence, through a censured passage of the first (posthumous) edition of Histoire comique des Estats et Empires de la Lune (1657), that Cyrano was incarcerated in 1654, have opened a broad field for new investigation. The book will be divided in three parts. The first deals with biography; based on archival material and unpublished or published but totally ignored documents concerning Cyrano's family as well as a few of his writer-friends (Dassoucy, Chapelle, Le Royer de Prades, Tristan Lhermite, etc.), this study sheds a new light on this free thinker and his milieu. The second part focuses essentially on the third manuscript (called the "Sydney manuscript" according to its location): a minute analysis and evaluation of this manuscript compared with the other three known versions (Paris manuscript, Munich manuscript and 1657 edition) allows one to theorize on the relations and the genealogy of the four versions and also on the very complex and yet almost unexplored problem of the production and the circulation of clandestine manuscript literature in seventeenth-century France. This part of the work will lead to a second critical edition of L'Autre Monde and replace the 1977 one. The third part will be devoted to a rereading of Cyrano's two novels as parodies. Estats et Empires is, actually, Davity's title of one of his very famous geo-socio-political works (a kind of ancestor of Diderot's Encyclopédie). Therefore Cyrano's "palimpsests" provide the opportunity to decode a very specific aspect of his fictions. Furthermore, this original point of view opens new perspectives on the unsolved although much debated question of these narratives as Utopian writings.