Katharine Kaye McMillan, PhD, is a social cognitive psychologist who writes do-it-yourself decorating advice in her online Design Doctor column. She is the coauthorwith her mother and mentor, Patricia Hart McMillan, of Home Decorating For Dummies, 2nd Edition, Glass Tile: Inspirations for Kitchens and Baths, Sun Country Style, and House Comfortable. Where the Pros Live, her weekly feature series on how trendsetters and tastemakers really design for themselves, runs weekly in the Palm Beach Post 's "Florida Home" section. She is a contributing writer to Florida Design, the leading internationally distributed decorating magazine. An expert in masculinity and self-concept, she teaches psychology at private and public colleges in South Florida. She appears on national and regional television shows, talk radio, and trades her do-it-yourself design secrets at home shows nationwide with Patricia Hart McMillan. Patricia Hart McMillan was Interior Design Editor of 1,001 Decorating Ideas (later Home ), one of the first dedicated do-it-yourself magazines with a multimillion reader circulation in the U.S.

, Canada, and Japan. She became Remodeling Editor of Home Mechanix Magazine, whose do-it-yourself readers included semi-professional and professional carpenters, painters, paper-hangers, floor-installers, and plumbers. On at least one occasion, she hung wallcovering for publication! As Editor in Chief of 20/20 Magazine, she helped launch a retail shop design series entitled Blueprint for Success, which continues. Private decorating clients include some "household names" as well as newlyweds with big dreams and small budgets. She's author and coauthor of eight books and at work on four more dealing with interior design, contemporary architecture, architectural glass tile, and historic houses and gardens. Her trendspotting articles and profiles of nationally known designers appear in newspapers, magazines, and online.