Kurt Hermann Eduard Karl Julius Schwitters was a German artist who was born in Hanover, Germany.

Schwitters worked in several genres and media, including dadaism, constructivism, surrealism, poetry, sound, painting, sculpture, graphic design, typography, and what came to be known as installation art. He is most famous for his collages, called Merz Pictures.

Kurt Schwitters was born on 20 June 1887 in Hanover, at Rumannstraße No.2, now: No. 8, the only child of Eduard Schwitters and his wife Henriette (née Beckemeyer). His father was (co-)proprietor of a ladies' clothes shop. The business was sold in 1898, and the family used the money to buy some properties in Hanover, which they rented out, allowing the family to live off the income for the rest of Schwitters's life in Germany. In 1893, the family moved to Waldstraße (later renamed to Waldhausenstraße), future site of the Merzbau. In 1901, Schwitters suffered his first epileptic seizure, a condition that would exempt him from military service in World War I until late in the war, when conscription was loosened.

After studying art at the Dresden Academy alongside Otto Dix and George Grosz, (although Schwitters seems to have been unaware of their work, or indeed of contemporary Dresden artists Die Brücke), 1909–1915, Schwitters returned to Hanover and started his artistic career as a post-impressionist. In 1911 he took part in his first exhibition, in Hanover. As the First World War progressed his work became darker, gradually developing a distinctive expressionist tone.

Schwitters spent the last one-and-half years of the war working as a drafter in a factory just outside Hanover. He was conscripted into the 73rd Hanoverian Regiment in March 1917, but exempted on medical grounds in June of the same year. By his own account, his time as a draftsman influenced his later work, and inspired him to depict machines as metaphors of human activity.

He married his cousin Helma Fischer on 5 October 1915. Their first son, Gerd, died within a week of birth, 9 September 1916; their second, Ernst, was born on 16 November 1918, and was to remain close to his father for the rest of his life, up to and including a shared exile in Britain together.

In 1918, his art was to change dramatically as a direct consequence of Germany's economic, political, and military collapse at the end of the First World War.

Schwitters was to come into contact with Herwarth Walden after exhibiting expressionist paintings at the Hanover Secession in February 1918. He showed two Abstraktionen (semi-abstract expressionist landscapes) at Walden's gallery Der Sturm, in Berlin, in June 1918,. This resulted in meetings with members of the Berlin Avant-garde, including Raoul Hausmann, Hannah Höch, and Jean Arp in the autumn of 1918.

Whilst Schwitters still created work in an expressionist style into 1919 (and would continue to paint realist pictures up to his death in 1948), the first abstract collages, influenced in particular by recent works by Jean Arp, would appear in late 1918, which Schwitters dubbed Merz after a fragment of found text from the phrase Commerz Und Privatbank (commerce and private bank) in his work Das Merzbild, completed in the winter of 1918–19. By the end of 1919 he had become a well-known artist, after his first one-man exhibition at Der Sturm gallery, in June 1919, and the publication, that August, of the poem An Anna Blume (translated as 'To Anna Flower', or 'To Eve Blossom'), a dadaist, non-sensical love poem. As Schwitters's first overtures to Zurich and Berlin Dada made explicit mention of Merz pictures, there are no grounds for the widespread claim that he invented Merz because he was rejected by Berlin Dada.

Schwitters asked to join Berlin Dada either in late 1918 or early 1919, according to the memoirs of Raoul Hausmann. Hausmann claimed that Richard Huelsenbeck rejected the application because of Schwitters's links to Der Sturm and to Expressionism in general, which were seen by the Dadaists as hopelessly romantic and obsessed with aesthetics. Ridiculed by Huelsenbeck as 'the Caspar David Friedrich of the Dadaist Revolution', he would reply with an absurdist short story Franz Mullers Drahtfrühling, Ersters Kapitel: Ursachen und Beginn der grossen glorreichen Revolution in Revon published in Der Sturm (xiii/11, 1922), which featured an innocent bystander who started a revolution 'merely by being there'.

Hausmann's anecdote about Schwitters asking to join Berlin Dada is, however, somewhat dubious, for there is well-documented evidence that Schwitters and Huelsenbeck were on amicable terms at first. When they first met in 1919, Huelsenbeck was enthusiastic about Schwitters's work and promised his assistance, while Schwitters reciprocated by finding an outlet for Huelsenbeck's Dada publications. When Huelsenbeck visited him at the end of the year, Schwitters gave him a lithograph (which he kept all his life) and though their friendship was by now strained, Huelsenbeck wrote him a conciliatory note. "You know I am well-disposed towards you. I think too that certain disagreements we have both noticed in our respective opinions should not be an impediment to our attack on the common enemy, the bourgeoisie and philistinism." It was not until mid-1920 that the two men fell out, either because of the success of Schwitters's poem An Anna Blume (which Huelsenbeck considered unDadaistic) or because of quarrels about Schwitters's contribution to Dadaco, a projected Dada atlas edited by Huelsenbeck. It is unlikely that Schwitters ever considered joining Berlin Dada, however, for he was under contract to Der Sturm, which offered far better long-term opportunities than Dada's quarrelsome and erratic venture. If Schwitters contacted Dadaists at this time, it was generally because he was searching for opportunities to exhibit his work.

Though not a direct participant in Berlin Dada's activities, Schwitters employed Dadaist ideas in his work, used the word itself on the cover of An Anna Blume, and would later give Dada recitals throughout Europe on the subject with Theo van Doesburg, Tristan Tzara, Jean Arp and Raoul Hausmann. In many ways his work was more in tune with Zürich Dada's championing of performance and abstract art than Berlin Dada's agit-prop approach, and indeed examples of his work were published in the last Zürich Dada publication, Der Zeltweg, November 1919, alongside the work of Arp and Sophie Tauber. Whilst his work was far less political than key figures in Berlin Dada, such as George Grosz and John Heartfield, he would remain close friends with various members, including Hannah Höch and Raoul Hausmann, for the rest of his career.

In 1922 Theo van Doesburg organised a series of Dada performances in the Netherlands. Various members of Dada were invited to join, but declined. Eventually the programme comprised acts and performances by Theo van Doesburg, Nelly van Doesburg as Petrò Van Doesburg, Kurt Schwitters and sometimes Vilmos Huszàr. The Dada performances took place in various cities, amongst which Amsterdam, Leiden, Utrecht and The Hague. Schwitters also performed on solo evenings, one of which took place on 13 April 1923 in Drachten, Friesland. Schwitters later on visited Drachten quite frequently, staying with a local painter, Thijs Rinsema [nl]. Schwitters created several collages there, probably together with Thijs Rinsema. Their collages can sometimes hardly be distinguished from each other. From 1921 onwards there are signs of correspondence between Schwitters and an intarsia worker. From this co-operation several new works originated, where the collage technique was applied to woodwork, by incorporating several kinds of wood as a means to delineate images and letters. Thijs Rinsema also used this technique.

Merz has been called 'Psychological Collage'. Most of the works attempt to make coherent aesthetic sense of the world around Schwitters, using fragments of found objects. These fragments often make witty allusions to current events. (Merzpicture 29a, Picture with Turning Wheel, 1920 for instance, combines a series of wheels that only turn clockwise, alluding to the general drift Rightwards across Germany after the Spartacist Uprising in January that year, whilst Mai 191(9), alludes to the strikes organized by the Bavarian Workers' and Soldiers' Council.) Autobiographical elements also abound; test prints of graphic designs; bus tickets; ephemera given by friends. Later collages would feature proto-pop mass media images. (En Morn, 1947, for instance, has a print of a blonde young girl included, prefiguring the early work of Eduardo Paolozzi, whilst many works seem to have directly influenced Robert Rauschenberg, who said after seeing an exhibition of Schwitters's work at the Sidney Janis Gallery, 1959, that "I felt like he made it all just for me.")

Whilst these works were usually collages incorporating found objects, such as bus tickets, old wire and fragments of newsprint, Merz also included artists' periodicals, sculptures, sound poems and what would later be called "installations". Schwitters was to use the term Merz for the rest of the decade, but, as Isabel Schulz has noted, 'though the fundamental compositional principles of Merz remained the basis and centre of [Schwitters's] creative work [...] the term Merz disappears almost entirely from the titles of his work after 1931'.

As the political climate in Germany became more liberal and stable, Schwitters's work became less influenced by Cubism and Expressionism. He started to organize and participate in lecture tours with other members of the international avant-garde, such as Jean Arp, Raoul Hausmann and Tristan Tzara, touring Czechoslovakia, the Netherlands, and Germany with provocative evening recitals and lectures.

Schwitters published a periodical, also called Merz, between 1923 and 1932, in which each issue was devoted to a central theme. Merz 5 1923, for instance, was a portfolio of prints by Jean Arp, Merz 8/9, 1924, was edited and typeset by El Lissitzky, Merz 14/15, 1925, was a typographical children's story entitled The Scarecrow by Schwitters, Kätte Steinitz and Theo van Doesburg. The last edition, Merz 24, 1932, was a complete transcription of the final draft of the Ursonate, with typography by Jan Tschichold.

His work in this period became increasingly Modernist in spirit, with far less overtly political context and a cleaner style, in keeping with contemporary work by Jean Arp and Piet Mondrian. His friendship around this time with El Lissitzky proved particularly influential, and Merz pictures in this period show the direct influence of Constructivism.

Thanks to Schwitters's lifelong patron and friend Katherine Dreier, his work was exhibited regularly in the US from 1920 onwards. In the late 1920s he became a well-known typographer; his best-known work was the catalogue for the Dammerstocksiedlung in Karlsruhe. After the demise of Der Sturm Gallery in 1924 he ran an advertising agency called Merzwerbe, which held the accounts for Pelikan inks and Bahlsen biscuits, amongst others, and became the official typographer for Hanover town council between 1929 and 1934. Many of these designs, as well as test prints and proof sheets, were to crop up in contemporary Merz pictures. In a manner similar to the typographic experimentation by Herbert Bayer at the Bauhaus, and Jan Tschichold's Die neue Typographie, Schwitters experimented with the creation of a new more phonetic alphabet in 1927. Some of his types were cast and used in his work. In the late 1920s Schwitters joined the Deutscher Werkbund (German Work Federation).

Alongside his collages, Schwitters also dramatically altered the interiors of a number of spaces throughout his life. The most famous was the Merzbau, the transformation of six (or possibly more) rooms of the family house in Hanover, Waldhausenstrasse 5. This took place very gradually; work started in about 1923, the first room was finished in 1933, and Schwitters subsequently extended the Merzbau to other areas of the house until he fled to Norway in early 1937. Most of the house was let to tenants, so that the final extent of the Merzbau was less than is normally assumed. On the evidence of Schwitters's correspondence, by 1937 it had spread to two rooms of his parents' apartment on the ground floor, the adjoining balcony, the space below the balcony, one or two rooms of the attic and possibly part of the cellar. In 1943 it was destroyed in an Allied bombing raid.

Early photos show the Merzbau with a grotto-like surface and various columns and sculptures, possibly referring to similar pieces by Dadaists, including the Great Plasto-Dio-Dada-Drama by Johannes Baader, shown at the first International Dada Fair, Berlin, 1920. Work by Hannah Höch, Raoul Hausmann and Sophie Tauber, amongst others, were incorporated into the fabric of the installation. By 1933, it had been transformed into a sculptural environment, and three photos from this year show a series of angled surfaces aggressively protruding into a room painted largely in white, with a series of tableaux spread across the surfaces. In his essay 'Ich und meine Ziele' in Merz 21, Schwitters referred to the first column of his work as the Cathedral of Erotic Misery. There is no evidence that he used this name after 1930, however. The first use of the word 'Merzbau' occurs in 1933.

Photos of the Merzbau were reproduced in the journal of the Paris-based group abstraction-création in 1933-34, and were exhibited in MoMA in New York in late 1936.

The Sprengel Museum in Hanover has a reconstruction of the first room of the Merzbau.

Schwitters later created a similar environment in the garden of his house in Lysaker, near Oslo, known as the Haus am Bakken (the house on the slope). This was almost complete when Schwitters left Norway for the United Kingdom in 1940. It burnt down in 1951 and no photos survive. The last Merzbau, in Elterwater, Cumbria, England, remained incomplete on Schwitters's death in January 1948. A further environment that also served as a living space can still be seen on the island of Hjertøya [no] near Molde, Norway. It is sometimes described as a fourth Merzbau, although Schwitters himself only ever referred to three. The interior has now been removed and will eventually be exhibited in the Romsdal Museum in Molde, Norway.

Schwitters composed and performed an early example of sound poetry, Ursonate (1922–1932; a translation of the title is Original Sonata or Primeval Sonata). The poem was influenced by Raoul Hausmann's poem "fmsbw" which Schwitters heard recited by Hausmann in Prague, 1921. Schwitters first performed the piece on 14 February 1925 at the home of Irmgard Kiepenheuer in Potsdam. He subsequently performed it regularly, both developing and extending it. He published his notations for the recital in the last Merz periodical in 1932, although he would continue to develop the piece for at least the next ten years.

As the political situation in Germany under the Nazis continued to deteriorate throughout the 1930s, Schwitters's work began to be included in the Entartete Kunst (Degenerate Art) touring exhibition organised by the Nazi party from 1933. He lost his contract with Hanover City Council in 1934 and examples of his work in German museums were confiscated and publicly ridiculed in 1935. By the time his close friends Christof and Luise Spengemann and their son Walter were arrested by the Gestapo in August 1936 the situation had clearly become perilous.

On 2 January 1937 Schwitters, wanted for an "interview" with the Gestapo, fled to Norway to join his son Ernst, who had already left Germany on 26 December 1936. His wife Helma decided to remain in Hanover, to manage their four properties. In the same year, his Merz pictures were included in the Entartete Kunst exhibition titled in Munich, making his return impossible.

Helma visited Schwitters in Norway for a few months each year up to the outbreak of World War II. The joint celebrations for his mother Henriette's 80th birthday and his son Ernst's engagement, held in Oslo on 2 June 1939, would be the last time the two met.

Schwitters started a second Merzbau while in exile in Lysaker nearby Oslo, in 1937 but abandoned it in 1940 when the Nazis invaded; this Merzbau was subsequently destroyed in a fire in 1951. His hut on the Norwegian island of Hjertøya, near Molde, is also frequently regarded as a Merzbau. For decades this building was more or less left to rot, but measures have now been taken to preserve the interior.

Following Nazi Germany's invasion of Norway, Schwitters was amongst a number of German citizens who were interned by the Norwegian authorities at Vågan Folk High School [no] in Kabelvåg on the Lofoten Islands, Following his release, Schwitters fled to Leith, Scotland with his son and daughter-in-law on the Norwegian patrol vessel Fridtjof Nansen between 8 and 18 June 1940. By now officially an 'enemy alien', he was moved between various internment camps in Scotland and England before arriving on 17 July 1940 in Hutchinson Camp in the Isle of Man.

The camp was situated in a collection of terraced houses around Hutchinson Square in Douglas. The camp soon comprised some 1,205 internees by end of July 1940, almost all of whom were German or Austrian. The camp was soon known as "the artists' camp", comprising as it did many artists, writers, university professors and other intellectuals. In this environment, Schwitters was popular as a character, a raconteur and as an artist.

He was soon provided studio space and took on students, many of whom would later become significant artists in their own right. He produced over 200 works during his internment, including more portraits than at any other time in his career, many of which he charged for. He contributed at least two portraits to the second art exhibition within the camp in November 1940, and in December he contributed (in English) to the camp newsletter, The Camp.

Schwitters was finally released on 21 November 1941, with the help of an intervention from Alexander Dorner, Rhode Island School of Design.

After obtaining his freedom Schwitters moved to London, hoping to make good on the contacts that he had built up over his period of internment. He first moved to an attic flat at 3 St. Stephen's Crescent, Paddington. It was here that he met his future companion, Edith Thomas.

In London he made contact with and mixed with a range of artists, including Naum Gabo, László Moholy-Nagy and Ben Nicholson. He exhibited in a number of galleries in the city but with little success; at his first solo exhibition at The Modern Art Gallery in December 1944, forty works were displayed, priced between 15 and 40 guineas, but only one was bought.

During his years in London, the shift in Schwitters's work continued towards an organic element that augmented the mass-produced ephemera of previous years with natural forms and muted colours. Pictures such as Small Merzpicture With Many Parts 1945–6, for example, used objects found on a beach, including pebbles and smooth shards of porcelain.

In August 1942 he moved with his son to 39 Westmoreland Road, Barnes, London. In October 1943 he learnt that his Merzbau in Hanover had been destroyed in Allied bombing. In April 1944 he suffered his first stroke, at the age of 56, which left him temporarily paralyzed on one side of his body. His wife Helma died of cancer on 29 October 1944, although Schwitters only heard of her death in December.

Schwitters first visited the Lake District on holiday with Edith Thomas in September 1942. He moved there permanently on 26 June 1945, to 2 Gale Crescent Ambleside. However, after another stroke in February of the following year and further illness, he and Edith moved to a more easily accessible house at 4 Millans Park.

During his time in Ambleside Schwitters created a sequence of proto-pop art pictures, such as For Käte, 1947, after the encouragement from his friend, Käte Steinitz. Having emigrated to the United States in 1936, Steinitz sent Schwitters letters describing life in the emerging consumer society, and wrapped the letters in pages of comics to give a flavour of the new world, which she encouraged Schwitters to 'Merz'.

In March 1947, Schwitters decided to recreate the Merzbau and found a suitable location in a barn at Cylinders Farm, Elterwater, which was owned by Harry Pierce, whose portrait Schwitters had been commissioned to paint. Having been forced by a lack of other income to paint portraits and popularist landscape pictures suitable for sale to the local residents and tourists, Schwitters received notification shortly before his 60th birthday that he had been awarded a £1,000 fellowship to be transferred to him via the Museum of Modern Art in New York City in order to enable him to repair or re-create his previous Merz constructions in Germany or Norway. Instead he used it for the "Merzbarn" in Elterwater. Schwitters worked on the Merzbarn daily, travelling the five miles between his home and the barn, except for when illness kept him away. On 7 January 1948 he received the news that he had been granted British citizenship. The following day, on 8 January, Schwitters died from acute pulmonary edema and myocarditis, in Kendal Hospital.

He was buried on 10 January at St. Mary's Church, Ambleside. His grave was unmarked until 1966 when a stone was erected with the inscription Kurt Schwitters – Creator of Merz. The stone remains as a memorial even though his body was disinterred and reburied in the Engesohde Cemetery in Hanover in 1970, the grave being marked with a marble copy of his 1929 sculpture Die Herbstzeitlose.