Joan and interior designer Nan Sloan transform a cluttered playroom into an organized and creative space with room to grow.

Joan and interior designer Nancy Golden give a warm and cozy makeover to an odd-shaped attic bedroom.

Joan and interior designer Courtney Yasmineh add some elegant charm to a plain but beautiful dining room.

Joan and interior designer Joan MacDowell transform a bachelor's plain white kitchen into a contemporary and functional space.

Joan and interior designer Joan MacDowell warm up a cold and uninviting living room with a new color palette.

Joan and interior designer Nan Sloan transform a white-on-white family room into a warm and inviting gathering space.

Joan and interior designer Nancy Golden give a colorful makeover to a bland and boring laundry room.

Joan and interior designer Peggy Sellwood transform a small, uninspiring bedroom into a frilly pink paradise for an eight-year-old girl.

Joan and interior designer Bridget Windsor give plenty of personality to a generic L-shaped bathroom.

Joan and interior designer Nan Sloan give a dated yet spacious master bedroom a bright and informal look.

Joan and interior designer Courtney Yasmineh give a seven-year-old girl's bedroom a sophisticated yet kid-friendly French country makeover.

Joan and interior designer Nancy Golden use floral accents to countrify a contemporary dining room.

Joan and interior designer Ann Sundet transform a dreary, unused back porch into a bright breakfast room perfect for entertaining.