The Book of Disquiet is the largest literary work of the Portuguese modernist Fernando Pessoa. It is an autobiography or a diary that contains exquisite melancholic observations, aphorisms, and reflections. This classic work deals with all of life's eternal questions. For the first time, the texts are presented in a complete English edition, chronologically arranged by the master translator Margaret Jull Costa. Most of the texts in The Book of Disquiet are written under the semi-heteronym Bernardo Soares, an assistant bookkeeper. This existential masterpiece was first published in Portuguese in 1982, forty-four years after Pessoa's death. A monumental literary event, this exciting new complete edition encompasses the entire literary life of Fernando Pessoa.