El loco impuro is the spanish translation of the first book of the great italian writer Roberto Calasso. It is a fascinating book on the famous german jurist, Daniel Paul Schreber, written by Calasso as he finished editing Schreber's book, Memoirs of my nervous illness. Calasso studies Schreber from a unique perspective, with a very different approach from that taken by such thinkers as Freud or Lacan. Calasso sees Schreber's madness as the product of divine posession, producing a masterpiece that every Calasso reader will truly enjoy.