Al Held
Al Held (United States, 1928–2005) was an American painter renowned for his evolution from Abstract Expressionism to Hard-edge abstraction. His large-scale geometric works explored complex spatial relationships, often employing bold colors and precise forms. Held's art challenges perceptions of depth and perspective, contributing significantly to 20th-century abstract art.

Artwork by Eduardo Chillida
What is abstract art?
Abstract art uses form, shape, line, and color to create a visual experience without attempting to represent external reality. The composition exists independently of the world's visual references, focusing on expressing ideas and emotions through non-representational means.