Willys de Castro: Architect of Active Space Willys de Castro (February 16, 1926 – June 5, 1988) was a Brazilian visual artist whose work fundamentally challenged the traditional boundaries between painting and sculpture. Born in Cuiabá, Brazil, he emerged as a pivotal figure within the Neo-Concrete movement, a radical artistic current that arose in São Paulo during the late 1950s. De Castro’s legacy lies not just in his individual creations but also in his pioneering role in dismantling established notions of art and its relationship to space, perception, and the viewer. His work is characte…