Wallpaper is an explosive celebration of trusty old wallpaper's remarkable comeback. No longer used exhaustively to cover cracks and imperfections in crumbling plaster, wallcoverings are now a means of expressing individuality. Fashionistas, illustrators, interior and graphic designers have taken note--the new wallpaper is blurring the division between art and interior decoration. Graphic designers and illustrators are using walls as their canvases,...