Robert Mallary
Quad IV

Herbert W. Franke / Georg Färber
Quadrate
1969/1970

Norman White
Quand Même
1973

Georg Nees
Rahmenwerk Plus
1986

Béla Julesz
Random Dot Stereogram

Masao Kohmura / Haruki Tsuchiya / CTG Japan
Random Walk Kennedy
1967

Charles "Chuck" Csuri / James Shaffer
Random War
1967

Charles "Chuck" Csuri
Random light and shadow
1967

Vera Molnar
Rectangles yellow, blue and black
1953

Hiroshi Kawano
Red Tree
1972

Helmar Frank
Redundanz 0,32
undated

Josef Albers
Redwindow
1923

Francois Morellet
Relache02
1992

Manfred R. Schroeder
Relative Primzahlen
1972

Manfred Mohr
Relief 14/268 Auflösungszeichen
1968

Herman de Vries
Relief
1966/67

Vera Molnar
Repentirs
1992

CTG Japan
Return to Square A
1967 / 68

CTG Japan
Return to Square B
1967 / 68

Josef Albers
Rolled Wrongly
1931

Roman Verostko
Roman views angel choir fresco
1954

A. Michael Noll
Rotating Hypercubes

Herbert W. Franke
Rotationen
about 1970-73

Jean Tinguely
Rotozaza

Masao Kohmura / Koji Fujino / Makoto Ohtake / CTG Japan
Running Cola is Africa!
1968

Francois Morellet
Répartition
1961

Herbert W. Franke
Röntgenaufnahme
1958

Karl Otto Götz
Röst
1959

Herbert Brün
SAWDUST

Nicolas Schöffer
SCAM1
1973