Lot Essay
"The pleasures of sight have one characteristic in common - they take you by surprise. They are sudden, swift and unexpected. If one tries to prolong them, recapture them or bring them about wilfully their purity and freshness is lost. They are essentially enigmatic and elusive" (B. Riley, "The Pleasures of Sight" (1984), reproduced in B. Riley, The Eye's Mind: Bridget Riley, Collected Writings 1965-1999, London 1999, p. 32).