YAYU RUBIYANTI, M.SN. (KNOWN AS RUBY SOFYAN) IS AN INTERIOR CONSULTANT AND FURNITURE DESIGNER WITH OVER TEN YEARS OF EXPERIENCE. SHE HAS COOPERATED WITH COMPANIES SUCH AS SANTAI FURNITURE AND SEVERAL PRESTIGIOUS COMPANIES IN YOGYAKARTA AND SEMARANG, PRODUCING INNOVATIVE DESIGNS IN INTERIOR AND FURNITURE PROJECTS. IN ADDITION TO HIS ACADEMIC ROLE, SHE ACTIVELY CONTRIBUTES TO THE DESIGN COMMUNITY AS A SECRETARY OF THE INDONESIAN FURNITURE DESIGNERS ASSOCIATION (HDMI) AND THE INDONESIAN INTERIOR DESIGNERS ASSOCIATION (HDII), PRESTIGIOUS PROFESSIONAL ORGANIZATIONS IN THEIR FIELDS.