Designers John Loecke and Jason Oliver Nixon, who recently hosted an open house at their Brooklyn townhouse with a wallpaper-trade association, offer some tips on how to decorate with their favorite wall covering:

Designers John Loecke and Jason Oliver Nixon, who recently hosted an open house at their Brooklyn townhouse with a wallpaper-trade association, offer some tips on how to decorate with their favorite wall covering:

1. Create a "jewel box" in a tiny space like a foyer by covering the walls and ceiling with a single pattern, then jazzing it up with paste-on rhinestones or pearls. An entryway also is a good place for a pricey paper that may be too expensive in a larger room.

2. Pick two separate but complementary patterns for the walls and ceiling in a bedroom, like a curving vine pattern on the wall that draws the eye to a floral pattern above. It will create visual interest, which Loecke and Nixon note promotes contemplation — and perhaps sleep.

3. Tropical designs are hot. Loecke and Nixon papered a pink-tiled bathroom with a banana leaf pattern in contrasting shades of green. The bold design is famously associated with the Beverly Hills Hotel.

4. Use a rare, expensive or powerful pattern on a "feature" wall in a room, where it can serve the same function as art.

5. Woven and grasscloth papers are good for unifying wall space along a multi-story staircase and also can serve as a neutral backdrop for a diverse art collection. A tight sisal weave has the added attraction of hiding nail holes.

6. Wallpaper can help divide open spaces into zones, such as in a bathroom where you might want to distinguish between the shower area and the sink.