Since Gagosian Gallery began showing design with a solo show of Marc Newson in 2007, it has expanded its activity in the territory of design. Now, a new show of colored mirrors by French architect Jean Nouvel, opened in Gagosian London. Opened in collaboration with Galerie Patrick Seguin, the show, entitled "Triptyques," consists of a series of limited edition mirrors. They reflects Nouvel's architectural commissions, and clearly correspond to his building design. I am particularly referring to Nouvel's 40 Mercer where he used colored glass of yellow, red, and blue to express the purity of the austere form.