Fernando Pessoa (1888–1935), the Portuguese poet, fiction writer, literary critic, and translator, is widely regarded as one of the most significant literary figures of the 20th century. After nearly a decade in Durban, South Africa (1895–1905), he returned to his native Lisbon at age 17, where he went on to create one of the most extraordinarily diverse bodies of work in Western literature. By the time of his death at 47, Pessoa had conceived nearly 140 fictional alter egos—what he later termed heteronyms—through whom he wrote poetry and prose. Among them were Karl P. Effield, Charles Robert Anon, Alexander Search, Jean Seul de Méluret, Vicente Guedes, Frederick Wyatt, and many others. Of these, three stand out: Alberto Caeiro, regarded as the central figure of the poetic constellation, and Ricardo Reis and Álvaro de Campos, both of whom—along with Pessoa himself considered Caeiro their literary master. Outside Portugal, Pessoa is best known for Livro do Desassossego (The Book of Disquiet), a fragmentary, posthumously published work written in Portuguese and first released in 1982. A foreign correspondent for commercial firms and an active contributor and editor for several Portuguese literary journals, Pessoa left behind a vast, multilingual oeuvre in Portuguese, English, and French—that continues to be edited, translated, and studied worldwide. He wrote his final line in English, the language of his formative years, just one day before his death in late 1935: “I know not what to-morrow will bring.”
 
Álvaro de Campos is one of the major heteronyms created by Portugal’s greatest modernist writer, Fernando Pessoa. According to his fictional biography, Campos was born in Tavira (Algarve) in 1890 and studied mechanical engineering in Glasgow, Scotland—though he never completed his degree. Orphaned at an early age, he traveled to the East in his twenties, where he became an opium addict, much like the Portuguese symbolist poet Camilo Pessanha (1867–1926). Upon returning to Portugal, during a visit to the Ribatejo province, Campos encountered Alberto Caeiro, the revered master of Pessoa’s poetic constellation. A dandy and flâneur, Campos read Blake, Whitman, and Nietzsche, among others. In his own fictional time, he was both celebrated and reviled for his vociferous verse—marked by Whitmanian cadences, exultations of modernity and technology, and a polemical stance toward industrial civilization. His voice also extended into manifestos, interviews, and essays. Among his most notable works are “Ode Marítima” [Maritime Ode], “Ultimatum,” and “Tabacaria” [The Tobacconist’s Shop], all published during Pessoa’s lifetime. Fernando Pessoa never ‘ended’ Campos’s life—ensuring this heteronym would outlive his creator, who died in 1935.