Levi was born in 1919 in Turin, Italy, at Corso Re Umberto 75, into a liberal Jewish family. His father, Cesare, worked for the Manufacturing firm Ganz and spent much of his time working abroad in Hungary, where Ganz was based. Cesare was an avid reader and autodidact. Levi's mother, Ester, known to everyone as Rina, was well educated, having attended the Istituto Maria Letizia. She too was an avid reader, played the piano, and spoke fluent French. The marriage between Rina and Cesare had been arranged by Rina's father. On their wedding day, Rina's father, Cesare Luzzati, gave Rina the apartment at Corso Re Umberto, where Primo Levi lived for almost his entire life.

In 1921 Anna Maria, Levi's sister, was born; he remained close to her all his life. In 1925 he entered the Felice Rignon primary school in Turin. A thin and delicate child, he was shy and thought he was ugly; he excelled academically. His school record includes long periods of absence during which he was tutored at home, at first by Emilia Glauda and then by Marisa Zini, daughter of Philosopher Zino Zini. The children spent summers with their mother in the Waldensian valleys southwest of Turin, where Rina rented a farmhouse. His father remained in the city, partly because of his dislike of the rural life, but also because of his infidelities.

In the liberal period as well as in the first decade of the Fascist regime, Jews held many public positions, and were prominent in literature, science and politics. In 1929 Mussolini signed an agreement with the Catholic Church, the Lateran Treaty, which established Catholicism as the State religion, allowed the Church to influence many sectors of education and public life, and relegated other religions to the status of "tolerated cults". In 1936 Italy's conquest of Ethiopia and the expansion of what the regime regarded as the Italian "colonial empire" brought the question of "race" to the forefront. In the context set by these events, and the 1940 alliance with Hitler's Germany, the situation of the Jews of Italy changed radically.

In September 1930 Levi entered the Massimo d'Azeglio Royal Gymnasium a year ahead of normal entrance requirements. In class he was the youngest, the shortest and the cleverest, as well as being the only Jew. For these reasons, he was bullied. In August 1932, following two years at the Talmud Torah school in Turin, he sang in the local synagogue for his Bar Mitzvah. In 1933, as was expected of all young Italian schoolboys, he joined the Avanguardisti movement for young Fascists. He avoided rifle drill by joining the ski division, and spent every Saturday during the season on the slopes above Turin. As a young boy Levi was plagued by illness, particularly chest infections, but he was keen to participate in physical activity. In his teens, Levi and a few friends would sneak into a disused Sports stadium and conduct athletic competitions.

In July 1934 at the age of 14, he sat the exams for the Liceo Classico D'Azeglio, a Lyceum (sixth form or senior high school) specializing in the classics, and was admitted that year. The school was noted for its well-known anti-Fascist teachers, among them the Philosopher Norberto Bobbio, and Cesare Pavese, who later became one of Italy's best-known novelists. Levi continued to be bullied during his time at the Lyceum, although six other Jews were in his class. Upon reading Concerning the Nature of Things by Sir william Bragg, Levi decided that he wanted to be a Chemist.

In 1937, he was summoned before the War Ministry and accused of ignoring a draft notice from the Italian Royal Navy—one day before he was to write a final examination on Italy's participation in the Spanish Civil War, based on a quote from Thucydides: "We have the singular merit of being brave to the utmost degree." Distracted and terrified by the draft accusation, he failed the exam—the first poor grade of his life—and was devastated. His father was able to keep him out of the Navy by enrolling him in the Fascist militia (Milizia Volontaria per la Sicurezza Nazionale). He remained a member through his first year of university, until passage of the Italian Racial Laws of 1938 forced his expulsion. Levi later recounted this series of events in the short story "Fra Diavolo on the Po".

In July 1938 a group of prominent Italian Scientists and intellectuals published the "Manifesto of Race," a mixture of racial and ideological antisemitic theories from ancient and modern sources. This treatise formed the basis for the Italian Racial Laws of October 1938. After its enactment Italian Jews lost their basic civil rights, positions in public offices, and their assets. Their books were prohibited: Jewish Writers could no longer publish in magazines owned by Aryans. Jewish students who had begun their course of study were permitted to continue, but new Jewish students were barred from entering university. Levi had matriculated a year earlier than scheduled enabling him to take a degree.

In 1939 Levi began his love affair with hiking in the mountains. A friend, Sandro Delmastro, taught him how to hike, and they spent many weekends in the mountains above Turin. Physical exertion, the risk, and the battle with the elements all supplied him with an outlet for his frustrations, as Levi later wrote in the chapter "Iron" of The Periodic Table (1975). In June 1940 Italy declared war as an ally of Germany against Britain and France, and the first Allied air raids on Turin began two days later. Levi's studies continued during the bombardments. The family suffered additional strain as his father became bedridden with bowel cancer.

In December 1941 Levi received a clandestine job offer at an asbestos mine in San Vittore. The project was to extract nickel from the mine spoil, a challenge he accepted with pleasure. Levi understood that, if successful, he would be aiding the German war effort, which was suffering nickel shortages in the production of armaments. The job required Levi to work under a false name with false papers. In March 1942 while he was working at the mine, his father died. Levi left the mine in June to work in Milan. Recruited through a fellow student at Turin University, working for the Swiss firm of A Wander Ltd on a project to extract an anti-diabetic from vegetable matter, he took the job in a Swiss company to escape the race laws. It soon became clear that the project had no chance of succeeding, but it was in no one's interest to say so.

The Italian resistance movement became increasingly active in the German-occupied zone. Levi and some comrades took to the foothills of the Alps, and in October formed a partisan group in the hope of being affiliated to the liberal Giustizia e Libertà. Untrained for such a venture, he and his companions were arrested by the Fascist militia on 13 December 1943. When told he would be shot as an Italian partisan, Levi confessed to being Jewish. He was sent to the internment camp at Fossoli near Modena. He recalled that as long as Fossoli was under the control of the Italian Social Republic, rather than Nazi Germany, he was not harmed.

Fossoli was then taken over by the Nazis, who started arranging the deportations of the Jews to eastern concentration and death camps. On the second of these transports, on 21 February 1944, Levi and other inmates were transported in twelve cramped cattle trucks to Monowitz, one of the three main camps in the Auschwitz concentration camp complex. Levi (record number 174517) spent eleven months there before the camp was liberated by the Red Army on 18 January 1945. Of the 650 Italian Jews in his transport, Levi was one of twenty who left the camps alive. The average life expectancy of a new entrant at the camp was three to four months.

Although liberated on 27 January 1945, Levi did not reach Turin until 19 October 1945. After spending some time in a Soviet camp for former concentration camp inmates, he embarked on an arduous journey home in the company of former Italian prisoners of war who had been part of the Italian Army in Russia. His long railway journey home to Turin took him on a circuitous route from Poland, through Belarus, Ukraine, Romania, Hungary, Austria, and Germany. In later writings, he noted the millions of displaced people on the roads and trains throughout Europe in that period.

On 22 December 1946, the manuscript was complete. Lucia, who now reciprocated Levi's love, helped him to edit it, to make the narrative flow more naturally. In January 1947, Levi was taking the finished manuscript around to publishers. It was rejected by Einaudi on the advice of Natalia Ginzburg. The social wounds of the war years were still too fresh, and he had no literary experience to give him a reputation as an author.

In September 1947, Levi married Lucia and a month later, on 11 October, If This Is a Man was published with a print run of 2,000 copies. In April 1948, with Lucia pregnant with their first child, Levi decided that the life of an independent Chemist was too precarious. He agreed to work for Accatti in the family paint Business which traded under the name SIVA. In October 1948, his daughter Lisa was born.

In 1950, having demonstrated his chemical talents to Accatti, Levi was promoted to Technical Director at SIVA. As SIVA's principal Chemist and trouble shooter, Levi travelled abroad. He made several trips to Germany and carefully engineered his contacts with senior German businessmen and Scientists. Wearing short-sleeved shirts, he made sure they saw his prison camp number tattooed on his arm.

During this period, his friend Lorenzo Perrone's physical and psychological health declined. Lorenzo had been a civilian forced worker in Auschwitz, who for six months had given part of his ration and a piece of bread to Levi without asking for anything in return. The gesture saved Levi's life. In his memoir, Levi contrasted Lorenzo with everyone else in the camp, prisoners and guards alike, as someone who managed to preserve his humanity. After the war, Lorenzo could not cope with the memories of what he had seen, and descended into alcoholism. Levi made several trips to rescue his old friend from the streets, but in 1952 Lorenzo died.

He became involved in organisations pledged to remembering and recording the horror of the camps. In 1954 he visited Buchenwald to mark the ninth anniversary of the camp's liberation from the Nazis. Levi dutifully attended many such anniversary events over the years and recounted his own experiences. In July 1957, his son Renzo was born, almost certainly named after his saviour Lorenzo Perrone.

In 1958 Stuart Woolf, in close collaboration with Levi, translated If This Is a Man into English, and it was published in the UK in 1959 by Orion Press. Also in 1959 Heinz Riedt, also under close supervision by Levi, translated it into German. As one of Levi's primary reasons for writing the book was to get the German people to realise what had been done in their name, and to accept at least partial responsibility, this translation was perhaps the most significant to him.

Levi began writing The Truce early in 1961; it was published in 1963, almost 16 years after his first book. That year it won the first annual Premio Campiello literary award. It is often published in one volume with If This Is a Man, as it covers his long return through eastern Europe from Auschwitz. Levi's reputation was growing. He regularly contributed articles to La Stampa, the Turin newspaper. He worked to gain a reputation as a Writer about subjects other than surviving Auschwitz.

In 1963, he suffered his first major bout of depression. At the time he had two young children, a responsible job at a factory where accidents could and did have terrible consequences, he travelled and became a public figure. But the memory of what happened less than twenty years earlier still burned in his mind. Today the link between such trauma and depression is better understood. Doctors prescribed several different drugs over the years, but these had variable efficacy and side effects.

In 1964 Levi collaborated on a radio play based upon If This Is a Man with the state broadcaster RAI, and in 1966 with a theatre production.

He published two volumes of science fiction short stories under the pen name of Damiano Malabaila, which explored ethical and philosophical questions. These imagined the effects on society of inventions which many would consider beneficial, but which, he saw, would have serious implications. Many of the stories from the two books Storie naturali (Natural Histories, 1966) and Vizio di forma (Structural Defect, 1971) were later collected and published in English as The Sixth Day and other Tales.

With the publication of the works of Nobel laureate Aleksandr Solzhenitsyn, above all the Gulag Archipelago (1974), the world at last acknowledged that the Soviet regime had used camps (gulags) from the early 1920s onward, to imprison both Criminals and politicals, viz. those convicted of "counter-revolutionary" crimes. Similarities with the Lager included hard physical work and poor rations. In this the camps set up in Nazi Germany after 1933 to isolate the political opponents of the Third Reich, religious dissenters, homosexuals and other targeted groups were comparable to those in the Soviet Union. The principal differences were that the wartime Nazi extermination camps (Vernichtungslager) existed primarily to engage in mass killing of individuals of all ages. They also existed for a very short but murderous three years (1941-1944).

In 1975 a collection of Levi's poetry was published under the title L'osteria di Brema (The Bremen Beer Hall). It was published in English as Shema: Collected Poems.

In 1977 at the age of 58, Levi retired as a part-time consultant at the SIVA paint factory to devote himself full-time to writing. Like all his books, La chiave a stella (1978), published in the US in 1986 as The Monkey Wrench and in the UK in 1987 as The Wrench, is difficult to categorize. Some reviews describe it as a collection of stories about work and workers told by a narrator who resembles Levi. Others have called it a novel, created by the linked stories and characters. Set in a Fiat-run company town in Russia called Togliattigrad, it portrays the Engineer as a hero on whom others depend. The underlying philosophy is that pride in one's work is necessary for fulfillment. The Piedmontese Engineer Faussone travels the world as an expert in erecting cranes and bridges. Left-wing critics said he did not describe the harsh working conditions on the assembly lines at Fiat. It brought Levi a wider audience in Italy. The Wrench won the Strega Prize in 1979. Most of the stories involve the solution of industrial problems by the use of troubleshooting skills; many stories come from the author's personal experience.

In 1984 Levi published his only novel, If Not Now, When?— or his second novel, if The Monkey Wrench is counted. It traces the fortunes of a group of Jewish partisans behind German lines during World War II as they seek to survive and continue their fight against the occupier. With the ultimate goal of reaching Palestine to take part in the development of a Jewish national home, the partisan band reaches Poland and then German territory. There the surviving members are officially received as displaced persons in territory held by the Western allies. Finally, they succeed in reaching Italy, on their way to Palestine. The novel won both the Premio Campiello and the Premio Viareggio.

Also in 1985 a volume of his essays, previously published in La Stampa, was published under the title L'altrui mestiere (Other People's Trades). Levi used to write these stories and hoard them, releasing them to La Stampa at the rate of about one a week. The essays ranged from book reviews and ponderings about strange things in nature, to fictional short stories.

Also in 1986 another collection of short stories, previously published in La Stampa, was assembled and published as Racconti e saggi (some of which were published in the English volume The Mirror Maker).

Levi died on 11 April 1987 after a fall from the interior landing of his third-story apartment in Turin to the ground floor below. The coroner ruled his death a suicide. Three of his biographers (Angier, Thomson and Anissimov) agreed. In his later life, Levi indicated that he was suffering from depression; factors likely included responsibility for his elderly mother and mother-in-law, with whom he was living, and lingering traumatic memories of his experiences. The Nobel laureate and Holocaust survivor Elie Wiesel said, at the time, "Primo Levi died at Auschwitz forty years later".

He wrote two other highly praised memoirs, Lilit e altri racconti (Moments of Reprieve, 1978) and Il sistema periodico (The Periodic Table, 1975). Moments of Reprieve deals with characters he observed during imprisonment. The Periodic Table is a collection of short pieces, based in episodes from his life but including two short stories that he wrote before his time in Auschwitz. Each story was related in some way to one of the chemical elements. At London's Royal Institution on 19 October 2006, The Periodic Table was voted onto the shortlist for the best science book ever written.

A Tranquil Star, a collection of seventeen stories translated into English by Ann Goldstein and Alessandra Bastagli [2] [3] was published in April 2007.

Levi rejected the idea that the system depicted in The Gulag Archipelago and that of the Nazi Lager (German: konzentrationslager; see Nazi concentration camps) were equivalent. The death rate in Stalin's GULag (Glavnoe upravlenie lagerei) was 30% at worst, he wrote, while in the extermination camps he estimated it to be 90–98%. Levi gave no source for these figures, and today Soviet Classified documents are available, showing that the rate of mortality varied considerably by region (e.g. the Far North and Magadan) and year (the war years from 1941-1945, for instance).

In 2015, Penguin published The Complete Works of Primo Levi, ed. Ann Goldstein. This is the first time that Levi's entire oeuvre has been translated into English.