Lygia Clark and Ferreira Gullar invite Hélio Oiticica to join the Grupo Neoconcreto in Rio de Janeiro.

The Série Branca [White Series] evolves from painting on cardboard to oil paintings on canvas and wood. Paints several monochromes, including triangular paintings in white and red, as well as the Invenções [Inventions] series. Begins the Bilaterais [Bilaterals] series.

Shows: September /December: V Bienal do Museu de Arte Moderna de São Paulo;

November 11 – “Exposição Neoconcreta,” held at Belvedere, Salvador, State of Bahia.

Writings: December, 1959/May, 1964 – Diary 59/64, doc nº 0182 AHO/PHO. Diary 59/63, doc nº0207/59 AHO/PHO.