Sezon Museum of Modern Art collection of works by Keiji Usami comprises approximately fifty pieces, ranging from early works such as Building, Anti-Building, Circuit 8 and Introduction to Abstraction（1）10　created around 1958–60, to Brake, Big Flood (2011), produced in the final years of his life.In 1992, Sezon Museum of Art organized Keiji Usami Retrospective: Re-Narrating the Construction of the World, the artist’s first major retrospective exhibition.