Knut Hamsun was a Norwegian writer who was awarded the Nobel Prize in Literature in 1920. Hamsun's work spans more than 70 years and shows variation with regard to consciousness, subject, perspective and environment. He published more than 23 novels, a collection of poetry, some short stories and plays, a travelogue, works of non-fiction and some essays.

The Nobel Prize in Literature is a Swedish literature prize that is awarded annually, since 1901, to an author from any country who has, in the words of the will of Swedish industrialist Alfred Nobel, "in the field of literature, produced the most outstanding work in an idealistic direction". Though individual works are sometimes cited as being particularly noteworthy, the award is based on an author's body of work as a whole. The Swedish Academy decides who, if anyone, will receive the prize. The academy announces the name of the laureate in early October. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895. Literature is traditionally the final award presented at the Nobel Prize ceremony. On some occasions, the award has been postponed to the following year, most recently in 2018.