A coordination kit for choosing suitable fabrics, paints, wall coverings, window treatments, fabrics for chairs etcetera, rugs and other floor coverings to achieve a desired decorator effect. The kit includes at least two nomographs, mounted to a substrate, and numbering up to a number equal to the number of elements of the total decoration effect that the user desires to choose. Each nomograph (nomogram), includes a rotatable upper layer having at least two windows, which overlies a lower layer having viewable segments, each of which segments has a plurality of cells, all of which cells contain a set of predetermined generally accepted color spectrum specimens, from either the entire color spectrum or a portion thereof, which specimens are used in the selection of the coordinated decorator effect desired. The specimens may be from but not limited to actual or photographic representations of tile, fabric, paint, rugs and other aspects of a room's decor.