Conceived in the last days of August 1888 - the last summer of his lucid life – in Sils Maria (Switzerland), "Magnum in parvo: A philosophy in compendium" is a work that Friedrich Nietzsche (1844-1900) projected as a synthesis of his ill-fated capital project "The will to power" and in which the key themes of his thought are addressed. Nevertheless, a sudden change of opinion determined that this work saw the light not in the planned unitary form, but dissolved and (...) mixed with other materials in two different books: "Twilight of the Idols" (1889) and "The Antichrist" (1894) (a). Professor Joaquín Riera has scientifically and painstakingly reconstructed, translated to Spanish, introduced and carefully annotated this Nietzsche’s book project using the posthumous nietzschean fragments or Nachgelassene Fragmente (b) and the original Nietzschean manuscripts of the published books (c) critically edited by Giorgio Colli and Mazzino Montinari. In this regard, the title chosen for the reconstruction of the work is the last one Nietzsche wrote down in his postumous fragment 19 [3] of September 1888 (d) and the names of the chapters that allow the reconstruction of its content were also wrote down by the German philosopher in the Nachgelassene Fragmente 19 [4] of the same date (e). Specifically, the content of the lost book has been recovered from the indications Nietzsche left in the head of the chapters or sections of the orignal manuscripts of "Twilight of the Idols" (1889) and "The Antichrist" (1894) (f) . In short, this edition of “Magnun in parvo” has recovered a noteworthy work of Nietzsche as he designed it, allowing the Nietzschean schoolars to acces to a piece of a remarkable philosophical and literary value, more rounded, overall, than what its two offspring would become. -/- Notes: -/- (a) Mazzino Montinari: Nietzsche lesen. De-Gruyter-Studienbuch, 1982. -/- (b) Friedrich Nietzsche Werke. Kritische Gesamtausgabe, VIII 3. Nachgelassene Fragmente Anfang 1888 bis Anfang Januar 1889. De Gruyter, Berlin et New York, 1972. -/- (c) Friedrich Nietzsche Werke. Kritische Gesamtausgabe, VI 3. Der Fall Wagner. Götzen-Dämmerung. / Nachgelassene Schriften (August 1888-Anfang Januar 1889): Der Antichrist. Ecce homo. Dionysos-Dithyramben. / Nietzsche contra Wagner, De Gruyter , Berlin,1969. -/- (d) “Magnum in parvo: Eine Philosophie im Auszug”. Friedrich Nietzsche Werke. Kritische Gesamtausgabe, VIII 3. Nachgelassene Fragmente Anfang 1888 bis Anfang Januar 1889. De Gruyter, Berlin et New York, 1972 and Mazzino Montinari: Nietzsche lesen. De-Gruyter-Studienbuch, 1982. -/- (e) “1. Wir Hyperboreer; 2.Das Problem des Sokrates; 3.Die Vernunft in der Philosophie. 4. Wie die wahre Welt endlich zur Fabel; 5. Moral als Widernatur; 6. Die vier großen Irrthümer; 7. Für uns—wider uns; 8. Begriff einer Décadence-Religion; 9. Buddhismus und Christenthum; 10. Aus meiner Aesthetik; 11. Unter Künstlern und Schriftstellern; 12. Sprüche und Pfeile”. Friedrich Nietzsche Werke. Kritische Gesamtausgabe, VIII 3. Nachgelassene Fragmente Anfang 1888 bis Anfang Januar 1889. De Gruyter, Berlin et New York, 1972 and Mazzino Montinari: Nietzsche lesen. De-Gruyter-Studienbuch, 1982. -/- (f) Friedrich Nietzsche Sämtliche Werke. Kritische Studienausgabe, band 14, Kommentar zu den Bänden 1-13., Walter de Gruyter, Berlín/Nueva York/Múnich, 1988 and Mazzino Montinari: Nietzsche lesen. De-Gruyter-Studienbuch. (shrink)