Alejandro Otero is considered one of the most important kinetic artists from Venezuela, though his influence and involvement spanned multiple styles and movements. Otero was a painter and sculptor who worked at times in a style of geometric abstraction using grids for Op Art-like effects, and at other times using gestural linear representation. In 1950, Otero began to produce collages made of found materials, with a focus on color planes and gridded compositions. Some of these were later called orthogonal collages, and became the foundation for his Coloritmo (or Colorhythms), today considered to be one of his major contributions to the field of painting. In 1960, Otero abandoned painting to pursue large-scale “civic sculptures,” and made works that were increasingly architectural. He was also the founder of Los Disidentes group of artists.