Untitled (Fragment 7), 1965
Bridget Riley's paintings and prints are amongst the most recognisable images of the twentieth century.
Born in England, Riley first began work as a semi-impressionist and pointillist, inspired by the work of figures such as Georges Seurat. In the 1960s, this developed into an illusory style which became known as Op Art. These black and white strongly patterned pieces later gave way to coloured works, including her famous 'stripe' paintings and prints.
Bridget Riley is still producing work and is one of modern British art's most popular and influential figures. Riley was commissioned to produce one of the posters for the 2012 London Olympics.