Sir Richard Julian Long, CBE, RA (born 2 June 1945) is an English sculptor and one of the best-known British land artists.

[3] Long studied at Saint Martin's School of Art before going on to create work using various media including sculpture, photography and text.

Other pieces consist of photographs or maps of unaltered landscapes accompanied by texts detailing the location and time of the walk it indicates.

The connection of the slates and the geometric shape illustrates a common theme that Long portrays in his work about the relationship between man and nature.

Long explains, "you could say that my work is ... a balance between the patterns of nature and formalism of human, abstract ideas of lines and circles.

[8] Permanent installations include Riverlines (2006) at the Hearst Tower in New York, US (at about 35 x 50 feet (11 x 15 metres) this was at the time the biggest wall work he had ever made);[9] Planet Circle (1991) at the Museum de Pont, Tilburg, Netherlands;[10] and White Water Falls (2012) in the Garvan Institute in Sydney, Australia.

At another auction in 1992, the piece was estimated far more modestly at $120,000 to $160,000, but bidding never exceeded $110,000;[19] instead, the National Gallery of Art, Washington, D.C. purchased it in 1994 through dealer Anthony d'Offay.