"To be eclectic means anything goes."
There is a define line between eclecticism and chaos. A room can take on an eclectic look by using subtle contrasts as well as bold ones. Vidicom CEO Christy Ferer says A contemporary home filled with classics or a historical one filled with contemporary ones automatically has an eclectic spirit. But it's certainly possible to create an incoherent space by jettisoning all organizing principles.
She recommends you start small- with galvanized metal chairs pulled up to a rustic country dining table or a sleek halogen lamp on a Chippendale desk. Mix shiny with rough, urban with earthy, provincial with palatial, old with new, the found object with the treasure. That's what eclecticism is all about. But there is safety in some uniformity. Keep one color of wood in a room of different period furniture. Use neutral walls to showcase varied forms of art.