Mir was born in Poland in 1967; she grew up in Sweden, studied in New York, lived in Palermo, Sicily, and now lives in London. Her work has been shown at Tate Modern, London; at the Schirn Kunsthalle, Frankfurt; at M - Museum Leuven; at the Whitney Museum of American Art, New York City; and at the Mercosul Biennial in Porto Alegre, Brazil.
The How Not to Cookbook, (Collective Gallery, Edinburgh, 2009 and Rizzoli, NYC 2010) collected advise from 1,000 home cooks from around the world who explained what not to do in the kitchen.
In First Woman on the Moon (1999), Mir converted a Dutch beach into a moonscape for one day with the help of bulldozers. The video of this event has been presented at multiple venues, at the International Space University, Strasbourg and at the UK Space Conference, Liverpool, 2015.
In 2002, Mir painted the Mandela Way T-34 Tank pink with Cubitt Artists.
For Newsroom 1986–2000 (2007), Mir with a group of assistants copied 240 NYC tabloid covers in felt-tip marker and mounted them in an ever-revolving installation to simulate the daily workings of a Manhattan newsroom. Mir has created a series of large scale murals using only Sharpie marker pens.
In Triumph she collected 2529 trophies from the general public of Sicily and exhibited them all in one installation at the Schirn Kunsthalle, Frankfurt (2009). It traveled to the South London Gallery for the London Olympics in 2012.
Mir has created Plane Landing, a real size helium inflatable jet plane, meant not to fly, but to hover above the ground as "a sculpture of a jet plane in a permanent state of landing".