Cesar Cornejo's work is focuses on the area of research defined by the intersection between art, architecture and society. Many of his projects are based on events related to his native Peru and the way they translate into the international context. He uses multidisciplinary approaches that he has incorporated from his architectural background and his experience living and working in Japan, London, New York and Peru. 

His work includes architectural installations, conceptual projects that explore new models of relations between the individual and the built environment, sculptures that function as abstract representations of conceptual models, interactive installations that explore the nature of space and culture, installations that are spatially express the grief in society, performances that explore the boundaries of public art, photography turned into sculptures, paintings that explore relation with architectural space and drawings that blend bidimensional and three dimensional expressions while addressing his views on society and the environment.