The Book of Disquiet is an unusual autobiography of Fernando Pessoa, a Portuguese writer who lived from 1888 to 1935 in Lisbon, Portugal. The book describes the atmosphere of Lisbon, especially the law firms and coffee shops that Pessoa knew best, in meandering language that often digresses into observations about human nature and the machinery of human culture. The book is fragmentary and debate is ongoing as to its proper arrangement, as Pessoa died before its publication.