"The perfect coffee table is one that fits the space, fulfills its duties, and looks good," says designer Cathy Kincaid, who gravitates toward simple squares and rectangles. In a formal setting, Kincaid likes a classic Chinese table, whether it is lacquered or wrapped with grass cloth. "For a family room, which typically calls for durability, I might opt for an antique-style farm table that has been cut down to coffee table height," she says. If your arrangement calls for an oblong table but you want a softer look, an oval table is a practical alternative to hard-edged, geometric shapes.

Glass and mirrored coffee tables add sparkle to a room. Surprisingly versatile and easy to maintain, these tables work well whether a room is formal or casual, traditional or modern. "If there is already a lot of furniture, a translucent glass surface offers the benefits of a table without making the room seem too crowded," says designer Gerrie Bremermann. She loves a glass-top table with "an interesting but simple" iron base. "It just works," she says. "And objects look beautiful on glass. I like to set up a nice variety of heights using a piece of sculpture or a pair of candlesticks with a book, a pretty dish, and fresh flowers."

"A mirrored coffee table is a wonderful means of lightening up and adding glamour to a room," says designer Jan Showers. "In fact, mirror is more practical and usable than most surfaces. You can put glasses directly on it and wipe it clean." If your room calls for more than one coffee table, Showers says, "you don't want too many mirrored pieces together. Complement your mirrored piece with a cigarette table made of a different material." Another rule of thumb: "Avoid placing a mirrored piece directly under recessed ceiling fixtures," she says. "If there are strong down lights, find a coffee table that is not reflective, such as one with a leather top and a cast-bronze base."