Marcel Odenbach Die Distanz zwischen mir und meinen Verlusten (The Distance Between Myself and My Losses) 1983
Hélio Oiticica Tropicália, penetráveis PN2 «Pureza é um mito», PN3 «Imagético» (Tropicália, Penetrable... 1967
Hélio Oiticica, Leandro Katz Parangolé–Encuentros de Pamplona, 1972 (Parangolé–Pamplona Encounters, 1972) 1972
Hélio Oiticica, Neville D'Almeida 21/CC1 (Trashiscapes/Cosmococa Programa-in-Progress) 1973 / Printed 2003
Hélio Oiticica, Neville D'Almeida 32/CC1 (Trashiscapes/Cosmococa Programa-in-Progress) 1973 / Printed 2003
Hélio Oiticica, Neville D'Almeida 15/CC1 (Trashiscapes/Cosmococa Programa-in-Progress) 1973 / Printed 2003
Itziar Okariz Red Light (saltando en el estudio de Marta) (Red Light [Jumping in Marta's Studio]) 1995 Room 001.09
Francisco Ontañón Matrimonio de Mobilette, Barcelona (Married Couple on Mobylette, Barcelona) 1954 / Later print, 1988