Amílcar de Castro (June 8, 1920 – November 21, 2002) was one of the most important figures in Brazilian modern and Neo-Concrete art during the twentieth century. Born in Minas Gerais, Brazil, he became internationally recognized for his monumental iron sculptures created through a radical process of cutting and folding steel plates into powerful geometric forms. His work transformed industrial material into something poetic and expressive, balancing weight, tension, movement, and simplicity with remarkable precision. Deeply connected to the Neo-Concrete movement alongside artists such as Lygia Clark and Lygia Pape, Amílcar de Castro rejected purely rational abstraction in favor of a more sensorial and human experience of form and space. Beyond sculpture, he also revolutionized graphic design in Brazil through his groundbreaking redesign of the Jornal do Brasil in the 1950s, helping redefine modern newspaper layout and visual communication in the country. His practice moved fluidly between sculpture, drawing, printmaking, and design, but his iconic steel works remain his most celebrated contribution, embodying a language of balance, material intelligence, and structural elegance that continues to influence contemporary Brazilian art today.