Sotheby's (NYSE:BID) is a multinational corporation, originally English but now owned and headquartered in the United States, that is one of the world's largest auctioneers of fine and decorative art, jewelry, and collectibles. Its operation is divided into three segments: Auction, Finance, and Dealer. The company’s services range from Corporate Art Services to Private Sales.

Sotheby’s is the world’s fourth oldest auction house in continuous operation, with 90 locations in 40 countries. As of December 2011, the company had 1,446 employees worldwide. It is the world's largest art business with global sales in 2011 totaling $5.8 billion.

Sotheby’s was established on March 11, 1744 in London. The American holding company was initially incorporated in August 1983 in Michigan. In June 2006, Sotheby’s Holdings, Inc. reincorporated in the State of Delaware and was renamed Sotheby’s. It is headquartered in New York City.

Sotheby's predecessor, Baker and Leigh, was founded in London on 11 March 1744 when Samuel Baker presided over the disposal of "several hundred scarce and valuable" books from the library of Rt Hon Sir John Stanley Bt., of Alderley. Three Swedish auction houses are even older, and Sotheby's great rival in London and then New York, Christie's, dates back to 1759 or shortly after. The current business dates back to 1804 when two of the partners of the original business (Leigh and Sotheby) left to set up their own book dealership. The library Napoleon took with him into exile at St Helena, as well as the library collections of John Wilkes, Benjamin Heywood Bright and the Dukes of Devonshire and of Buckingham (both related to George Leigh) were sold through Samuel Baker’s auctions.

Edvard Munch (Norwegian pronunciation: [ˈmʉŋk], 12 December 1863 – 23 January 1944) was a Norwegian painter and printmaker whose intensely evocative treatment of psychological themes built upon some of the main tenets of late 19th-century Symbolism and greatly influenced German Expressionism in the early 20th century. One of his most well-known works is The Scream of 1893.

Edvard Munch was born in a rustic farmhouse in the village of Ådalsbruk in Løten, to Christian Munch, the son of a priest. Christian was a doctor and medical officer who married Laura Catherine Bjølstad, a woman half his age, in 1861. Edvard had an elder sister, Johanne Sophie (born 1862), and three younger siblings: Peter Andreas (born 1865), Laura Catherine (born 1867), and Inger Marie (born 1868). Both Sophie and Edvard appear to have inherited their artistic talent from their mother. Edvard Munch was related to painter Jacob Munch (1776–1839) and historian Peter Andreas Munch (1810–1863).

The family moved to Christiania (now Oslo) in 1864 when Christian Munch was appointed medical officer at Akershus Fortress. Edvard's mother died of tuberculosis in 1868, as did Munch's favorite sister Johanne Sophie in 1877. After their mother's death, the Munch siblings were raised by their father and by their aunt Karen. Often ill for much of the winters and kept out of school, Edvard would draw to keep himself occupied, and received tutoring from his school mates and his aunt. Christian Munch also instructed his son in history and literature, and entertained the children with vivid ghost-stories and tales of Edgar Allan Poe.