The Munsell Interactive Learning Kit really makes color come alive. The kit explains metamerism and lets the user experience the effect of metamerism on an actual color sample; "ROY G BIV" and spectral reflectance curves; how far off a color can be before it is noticeable; how surface effects literally change what individuals see without changing the actual color; how high gloss, semi gloss, and matte finishes make a big difference in the way individuals see color; and how background color can change perception.