Coin collectors have collected toned coins for years, but the popularity of rainbow-toned coins is a relatively recent phenomenon. This book is a carefully curated sampling of some of the finest rainbow-toned coins that have come on the market in recent years. Glowing neon colors; "Lucky Charms" colors; peacock colors; pastel colors; thick, "heavy" colors; banded rainbow colors; crescent-shaped, double crescent-shaped and arch-shaped colors and more . . . All are gathered together here for your enjoyment. While these coins are each one-of-a-kind due to their unique toning, what they do have in common, with only a few exceptions, is that they are all either rainbow-toned or "monster"-toned U.S. coins. These naturally toned coins are all works of art--nature's art.