ROSEMARY KILMER, ASID, IDEC, LEED® AP, and W. OTIE KILMER, AIA, are both Professors Emeritis of interior design at Purdue University. Rosemary Kilmer has served on the Board of Directors for the NCIDQ exam. She is also a member of professional associations, as well as being an Accredited LEED Professional. W. Otie Kilmer has taught design and drawing for over 30 years. His successful career as an architect and interior designer has included work with high-profile international design firms. The authors lead their own design practice, Kilmer and Associates.